fix(ci): hash-pin pre-commit install and pin dependabot/fetch-metadata by SHA

Hash-pin the pre-commit install in the pre-commit-autoupdate workflow via
.github/pre-commit/requirements.txt, generated with
`pip-compile --generate-hashes --strip-extras`. Dependabot watches that
directory and keeps the transitive hash closure fresh.

Pin dependabot/fetch-metadata to its v3.0.0 commit SHA, so every GitHub
Action used under .github/workflows/ is now pinned by hash. This closes
the open Scorecard Pinned-Dependencies findings on GitHub code-scanning.

The previous --require-hashes attempt (reverted in commits like kickstart
4cb7f17) only pinned pre-commit itself; pip rejects that because
--require-hashes demands hashes for every transitive dependency. This
commit provides that closure via pip-compile.

Also fix a stale upload-artifact SHA comment in scorecard.yml (the SHA
was already v7.0.1, only the '# v3.pre.node20' comment was leftover from
the Scorecard template).

Document the two-tier pip pinning policy (hash-pin pre-commit,
version-pin the rest) under "CI Supply Chain" in CONTRIBUTING.md.

Author: markuslf

.github/dependabot.yml

@@ -15,3 +15,11 @@ updates:
       day: 'friday'
       time: '05:00'
       timezone: 'Etc/UTC'
+
+  - package-ecosystem: 'pip'
+    directory: '/.github/pre-commit'
+    schedule:
+      interval: 'weekly'
+      day: 'friday'
+      time: '05:00'
+      timezone: 'Etc/UTC'

.github/pre-commit/requirements.in

@@ -0,0 +1 @@
+pre-commit==4.5.1

.github/pre-commit/requirements.txt

@@ -0,0 +1,121 @@
+#
+# This file is autogenerated by pip-compile with Python 3.12
+# by the following command:
+#
+#    pip-compile --generate-hashes --output-file=requirements.txt --strip-extras requirements.in
+#
+cfgv==3.5.0 \
+    --hash=sha256:a8dc6b26ad22ff227d2634a65cb388215ce6cc96bbcc5cfde7641ae87e8dacc0 \
+    --hash=sha256:d5b1034354820651caa73ede66a6294d6e95c1b00acc5e9b098e917404669132
+    # via pre-commit
+distlib==0.4.0 \
+    --hash=sha256:9659f7d87e46584a30b5780e43ac7a2143098441670ff0a49d5f9034c54a6c16 \
+    --hash=sha256:feec40075be03a04501a973d81f633735b4b69f98b05450592310c0f401a4e0d
+    # via virtualenv
+filelock==3.25.2 \
+    --hash=sha256:b64ece2b38f4ca29dd3e810287aa8c48182bbecd1ae6e9ae126c9b35f1382694 \
+    --hash=sha256:ca8afb0da15f229774c9ad1b455ed96e85a81373065fb10446672f64444ddf70
+    # via
+    #   python-discovery
+    #   virtualenv
+identify==2.6.18 \
+    --hash=sha256:873ac56a5e3fd63e7438a7ecbc4d91aca692eb3fefa4534db2b7913f3fc352fd \
+    --hash=sha256:8db9d3c8ea9079db92cafb0ebf97abdc09d52e97f4dcf773a2e694048b7cd737
+    # via pre-commit
+nodeenv==1.10.0 \
+    --hash=sha256:5bb13e3eed2923615535339b3c620e76779af4cb4c6a90deccc9e36b274d3827 \
+    --hash=sha256:996c191ad80897d076bdfba80a41994c2b47c68e224c542b48feba42ba00f8bb
+    # via pre-commit
+platformdirs==4.9.6 \
+    --hash=sha256:3bfa75b0ad0db84096ae777218481852c0ebc6c727b3168c1b9e0118e458cf0a \
+    --hash=sha256:e61adb1d5e5cb3441b4b7710bea7e4c12250ca49439228cc1021c00dcfac0917
+    # via
+    #   python-discovery
+    #   virtualenv
+pre-commit==4.5.1 \
+    --hash=sha256:3b3afd891e97337708c1674210f8eba659b52a38ea5f822ff142d10786221f77 \
+    --hash=sha256:eb545fcff725875197837263e977ea257a402056661f09dae08e4b149b030a61
+    # via -r requirements.in
+python-discovery==1.2.2 \
+    --hash=sha256:876e9c57139eb757cb5878cbdd9ae5379e5d96266c99ef731119e04fffe533bb \
+    --hash=sha256:e1ae95d9af875e78f15e19aed0c6137ab1bb49c200f21f5061786490c9585c7a
+    # via virtualenv
+pyyaml==6.0.3 \
+    --hash=sha256:00c4bdeba853cc34e7dd471f16b4114f4162dc03e6b7afcc2128711f0eca823c \
+    --hash=sha256:0150219816b6a1fa26fb4699fb7daa9caf09eb1999f3b70fb6e786805e80375a \
+    --hash=sha256:02893d100e99e03eda1c8fd5c441d8c60103fd175728e23e431db1b589cf5ab3 \
+    --hash=sha256:02ea2dfa234451bbb8772601d7b8e426c2bfa197136796224e50e35a78777956 \
+    --hash=sha256:0f29edc409a6392443abf94b9cf89ce99889a1dd5376d94316ae5145dfedd5d6 \
+    --hash=sha256:10892704fc220243f5305762e276552a0395f7beb4dbf9b14ec8fd43b57f126c \
+    --hash=sha256:16249ee61e95f858e83976573de0f5b2893b3677ba71c9dd36b9cf8be9ac6d65 \
+    --hash=sha256:1d37d57ad971609cf3c53ba6a7e365e40660e3be0e5175fa9f2365a379d6095a \
+    --hash=sha256:1ebe39cb5fc479422b83de611d14e2c0d3bb2a18bbcb01f229ab3cfbd8fee7a0 \
+    --hash=sha256:214ed4befebe12df36bcc8bc2b64b396ca31be9304b8f59e25c11cf94a4c033b \
+    --hash=sha256:2283a07e2c21a2aa78d9c4442724ec1eb15f5e42a723b99cb3d822d48f5f7ad1 \
+    --hash=sha256:22ba7cfcad58ef3ecddc7ed1db3409af68d023b7f940da23c6c2a1890976eda6 \
+    --hash=sha256:27c0abcb4a5dac13684a37f76e701e054692a9b2d3064b70f5e4eb54810553d7 \
+    --hash=sha256:28c8d926f98f432f88adc23edf2e6d4921ac26fb084b028c733d01868d19007e \
+    --hash=sha256:2e71d11abed7344e42a8849600193d15b6def118602c4c176f748e4583246007 \
+    --hash=sha256:34d5fcd24b8445fadc33f9cf348c1047101756fd760b4dacb5c3e99755703310 \
+    --hash=sha256:37503bfbfc9d2c40b344d06b2199cf0e96e97957ab1c1b546fd4f87e53e5d3e4 \
+    --hash=sha256:3c5677e12444c15717b902a5798264fa7909e41153cdf9ef7ad571b704a63dd9 \
+    --hash=sha256:3ff07ec89bae51176c0549bc4c63aa6202991da2d9a6129d7aef7f1407d3f295 \
+    --hash=sha256:41715c910c881bc081f1e8872880d3c650acf13dfa8214bad49ed4cede7c34ea \
+    --hash=sha256:418cf3f2111bc80e0933b2cd8cd04f286338bb88bdc7bc8e6dd775ebde60b5e0 \
+    --hash=sha256:44edc647873928551a01e7a563d7452ccdebee747728c1080d881d68af7b997e \
+    --hash=sha256:4a2e8cebe2ff6ab7d1050ecd59c25d4c8bd7e6f400f5f82b96557ac0abafd0ac \
+    --hash=sha256:4ad1906908f2f5ae4e5a8ddfce73c320c2a1429ec52eafd27138b7f1cbe341c9 \
+    --hash=sha256:501a031947e3a9025ed4405a168e6ef5ae3126c59f90ce0cd6f2bfc477be31b7 \
+    --hash=sha256:5190d403f121660ce8d1d2c1bb2ef1bd05b5f68533fc5c2ea899bd15f4399b35 \
+    --hash=sha256:5498cd1645aa724a7c71c8f378eb29ebe23da2fc0d7a08071d89469bf1d2defb \
+    --hash=sha256:5cf4e27da7e3fbed4d6c3d8e797387aaad68102272f8f9752883bc32d61cb87b \
+    --hash=sha256:5e0b74767e5f8c593e8c9b5912019159ed0533c70051e9cce3e8b6aa699fcd69 \
+    --hash=sha256:5ed875a24292240029e4483f9d4a4b8a1ae08843b9c54f43fcc11e404532a8a5 \
+    --hash=sha256:5fcd34e47f6e0b794d17de1b4ff496c00986e1c83f7ab2fb8fcfe9616ff7477b \
+    --hash=sha256:5fdec68f91a0c6739b380c83b951e2c72ac0197ace422360e6d5a959d8d97b2c \
+    --hash=sha256:6344df0d5755a2c9a276d4473ae6b90647e216ab4757f8426893b5dd2ac3f369 \
+    --hash=sha256:64386e5e707d03a7e172c0701abfb7e10f0fb753ee1d773128192742712a98fd \
+    --hash=sha256:652cb6edd41e718550aad172851962662ff2681490a8a711af6a4d288dd96824 \
+    --hash=sha256:66291b10affd76d76f54fad28e22e51719ef9ba22b29e1d7d03d6777a9174198 \
+    --hash=sha256:66e1674c3ef6f541c35191caae2d429b967b99e02040f5ba928632d9a7f0f065 \
+    --hash=sha256:6adc77889b628398debc7b65c073bcb99c4a0237b248cacaf3fe8a557563ef6c \
+    --hash=sha256:79005a0d97d5ddabfeeea4cf676af11e647e41d81c9a7722a193022accdb6b7c \
+    --hash=sha256:7c6610def4f163542a622a73fb39f534f8c101d690126992300bf3207eab9764 \
+    --hash=sha256:7f047e29dcae44602496db43be01ad42fc6f1cc0d8cd6c83d342306c32270196 \
+    --hash=sha256:8098f252adfa6c80ab48096053f512f2321f0b998f98150cea9bd23d83e1467b \
+    --hash=sha256:850774a7879607d3a6f50d36d04f00ee69e7fc816450e5f7e58d7f17f1ae5c00 \
+    --hash=sha256:8d1fab6bb153a416f9aeb4b8763bc0f22a5586065f86f7664fc23339fc1c1fac \
+    --hash=sha256:8da9669d359f02c0b91ccc01cac4a67f16afec0dac22c2ad09f46bee0697eba8 \
+    --hash=sha256:8dc52c23056b9ddd46818a57b78404882310fb473d63f17b07d5c40421e47f8e \
+    --hash=sha256:9149cad251584d5fb4981be1ecde53a1ca46c891a79788c0df828d2f166bda28 \
+    --hash=sha256:93dda82c9c22deb0a405ea4dc5f2d0cda384168e466364dec6255b293923b2f3 \
+    --hash=sha256:96b533f0e99f6579b3d4d4995707cf36df9100d67e0c8303a0c55b27b5f99bc5 \
+    --hash=sha256:9c57bb8c96f6d1808c030b1687b9b5fb476abaa47f0db9c0101f5e9f394e97f4 \
+    --hash=sha256:9c7708761fccb9397fe64bbc0395abcae8c4bf7b0eac081e12b809bf47700d0b \
+    --hash=sha256:9f3bfb4965eb874431221a3ff3fdcddc7e74e3b07799e0e84ca4a0f867d449bf \
+    --hash=sha256:a33284e20b78bd4a18c8c2282d549d10bc8408a2a7ff57653c0cf0b9be0afce5 \
+    --hash=sha256:a80cb027f6b349846a3bf6d73b5e95e782175e52f22108cfa17876aaeff93702 \
+    --hash=sha256:b30236e45cf30d2b8e7b3e85881719e98507abed1011bf463a8fa23e9c3e98a8 \
+    --hash=sha256:b3bc83488de33889877a0f2543ade9f70c67d66d9ebb4ac959502e12de895788 \
+    --hash=sha256:b865addae83924361678b652338317d1bd7e79b1f4596f96b96c77a5a34b34da \
+    --hash=sha256:b8bb0864c5a28024fac8a632c443c87c5aa6f215c0b126c449ae1a150412f31d \
+    --hash=sha256:ba1cc08a7ccde2d2ec775841541641e4548226580ab850948cbfda66a1befcdc \
+    --hash=sha256:bdb2c67c6c1390b63c6ff89f210c8fd09d9a1217a465701eac7316313c915e4c \
+    --hash=sha256:c1ff362665ae507275af2853520967820d9124984e0f7466736aea23d8611fba \
+    --hash=sha256:c2514fceb77bc5e7a2f7adfaa1feb2fb311607c9cb518dbc378688ec73d8292f \
+    --hash=sha256:c3355370a2c156cffb25e876646f149d5d68f5e0a3ce86a5084dd0b64a994917 \
+    --hash=sha256:c458b6d084f9b935061bc36216e8a69a7e293a2f1e68bf956dcd9e6cbcd143f5 \
+    --hash=sha256:d0eae10f8159e8fdad514efdc92d74fd8d682c933a6dd088030f3834bc8e6b26 \
+    --hash=sha256:d76623373421df22fb4cf8817020cbb7ef15c725b9d5e45f17e189bfc384190f \
+    --hash=sha256:ebc55a14a21cb14062aa4162f906cd962b28e2e9ea38f9b4391244cd8de4ae0b \
+    --hash=sha256:eda16858a3cab07b80edaf74336ece1f986ba330fdb8ee0d6c0d68fe82bc96be \
+    --hash=sha256:ee2922902c45ae8ccada2c5b501ab86c36525b883eff4255313a253a3160861c \
+    --hash=sha256:efd7b85f94a6f21e4932043973a7ba2613b059c4a000551892ac9f1d11f5baf3 \
+    --hash=sha256:f7057c9a337546edc7973c0d3ba84ddcdf0daa14533c2065749c9075001090e6 \
+    --hash=sha256:fa160448684b4e94d80416c0fa4aac48967a969efe22931448d853ada8baf926 \
+    --hash=sha256:fc09d0aa354569bc501d4e787133afc08552722d3ab34836a80547331bb5d4a0
+    # via pre-commit
+virtualenv==21.2.3 \
+    --hash=sha256:486652347ea8526d91e9807c0274583cb7ba31dd4942ff10fb5621402f0fe0d8 \
+    --hash=sha256:9bb6d1414ab55ca624371e30c7719c32f183ef44da544ef8aa44a456de7ac191
+    # via pre-commit

.github/workflows/dependabot-auto-merge.yml

@@ -13,7 +13,7 @@ jobs:
     if: github.actor == 'dependabot[bot]'
     steps:
 
-      - uses: dependabot/fetch-metadata@v3
+      - uses: dependabot/fetch-metadata@ffa630c65fa7e0ecfa0625b5ceda64399aea1b36 # v3.0.0
         id: meta
 
       - if: >-

.github/workflows/pre-commit-autoupdate.yml

@@ -23,7 +23,7 @@ jobs:
           python-version: '3.12'
 
       - name: 'Install pre-commit'
-        run: 'pip install pre-commit==4.5.1'
+        run: 'pip install --require-hashes --requirement .github/pre-commit/requirements.txt'
 
       - name: 'Run pre-commit autoupdate'
         run: 'pre-commit autoupdate'

.github/workflows/scorecard.yml

@@ -63,7 +63,7 @@ jobs:
       # Upload the results as artifacts (optional). Commenting out will disable uploads of run results in SARIF
       # format to the repository Actions tab.
       - name: "Upload artifact"
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v3.pre.node20
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         with:
           name: SARIF file
           path: results.sarif

CHANGELOG.md

@@ -192,6 +192,11 @@ Monitoring Plugins:
 
 ### Security
 
+Build, CI/CD:
+
+* Harden the CI supply chain: the `pre-commit` install in the pre-commit-autoupdate workflow is now hash-pinned via `.github/pre-commit/requirements.txt` (generated with `pip-compile --generate-hashes --strip-extras`), and `dependabot/fetch-metadata` is pinned to a commit SHA so all GitHub Actions used in `.github/workflows/` are now pinned by hash. The policy is documented in CONTRIBUTING.md under "CI Supply Chain". No admin-facing behavior change.
+
+
 Monitoring Plugins:
 
 * Security audit over all plugins: reviewed every remaining `shell=True`, dynamic SQL query and admin-supplied `eval()` expression, confirmed each is driven by trusted check configuration rather than end-user input, and annotated them accordingly. No admin-facing behavior change.

CONTRIBUTING.md

@@ -61,6 +61,16 @@ Document all changes in `CHANGELOG.md` following [Keep a Changelog](https://keep
 Code, comments, commit messages, and documentation must be written in English.
 
 
+### CI Supply Chain
+
+GitHub Actions in `.github/workflows/` are pinned by commit SHA, not by tag. Dependabot's `github-actions` ecosystem keeps these pins up to date.
+
+Python packages installed via `pip` inside workflows follow a two-tier policy:
+
+- `pre-commit` is installed from a hash-pinned requirements file at `.github/pre-commit/requirements.txt`, generated with `pip-compile --generate-hashes --strip-extras` from `.github/pre-commit/requirements.in`. Dependabot's `pip` ecosystem watches that directory and maintains both files.
+- One-shot installs such as `ansible-builder`, `build`, `mkdocs`, `pdoc`, and `ruff` in release, docs, or test workflows are version-pinned only (`package==X.Y.Z`) and kept fresh by Dependabot. Scorecard's `pipCommand not pinned by hash` findings for these are considered acceptable risk and may be dismissed.
+
+
 ### Coding Conventions
 
 - Sort variables, parameters, lists, and similar items alphabetically where possible.