Bump filelock from 3.8.2 to 3.18.0

Bumps [filelock](https://github.com/tox-dev/py-filelock) from 3.8.2 to 3.18.0.
- [Release notes](https://github.com/tox-dev/py-filelock/releases)
- [Changelog](https://github.com/tox-dev/filelock/blob/main/docs/changelog.rst)
- [Commits](tox-dev/filelock@3.8.2...3.18.0)

---
updated-dependencies:
- dependency-name: filelock
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

backend/requirements.txt

@@ -19,9 +19,9 @@ fastapi-utils==0.2.1 ; python_version >= "3.8" and python_version < "4.0" \
 fastapi==0.79.1 ; python_version >= "3.8" and python_version < "4.0" \
     --hash=sha256:006862dec0f0f5683ac21fb0864af2ff12a931e7ba18920f28cc8eceed51896b \
     --hash=sha256:3c584179c64e265749e88221c860520fc512ea37e253282dab378cc503dfd7fd
-filelock==3.8.2 ; python_version >= "3.8" and python_version < "4.0" \
-    --hash=sha256:7565f628ea56bfcd8e54e42bdc55da899c85c1abfe1b5bcfd147e9188cebb3b2 \
-    --hash=sha256:8df285554452285f79c035efb0c861eb33a4bcfa5b7a137016e32e6a90f9792c
+filelock==3.18.0 ; python_version >= "3.8" and python_version < "4.0" \
+    --hash=sha256:adbc88eabb99d2fec8c9c1b229b171f18afa655400173ddc653d5d01501fb9f2 \
+    --hash=sha256:c401f4f8377c4464e6db25fff06205fd89bdd83b65eb0488ed1b160f780e21de
 greenlet==2.0.1 ; python_version >= "3.8" and (platform_machine == "aarch64" or platform_machine == "ppc64le" or platform_machine == "x86_64" or platform_machine == "amd64" or platform_machine == "AMD64" or platform_machine == "win32" or platform_machine == "WIN32") and python_version < "4.0" \
     --hash=sha256:0109af1138afbfb8ae647e31a2b1ab030f58b21dd8528c27beaeb0093b7938a9 \
     --hash=sha256:0459d94f73265744fee4c2d5ec44c6f34aa8a31017e6e9de770f7bcf29710be9 \