ci: extend Java CI / E2E / CodeQL / Maven publish to release/v7

So that pull requests targeting release/v7 are properly gated by the
same checks as master, and pushes to release/v7 (i.e. merged bug fix
PRs and release commits) trigger Maven Central publication for the
7.x line.

Without this, branch protection on release/v7 would block all merges
because no CI would ever fire to satisfy the required checks, and 7.x
maven artifacts would never reach Maven Central.

- build.yml + e2e.yml: add release/v7 to push branches
- codeql.yml: add release/v7 to push + pull_request branches
- publish-maven.yml: add release/v7 to workflow_run branches and gate

Author: confuser

.github/workflows/build.yml

@@ -5,6 +5,7 @@ on:
   push:
     branches:
       - master
+      - release/v7
   schedule:
     - cron: "0 0 * * 0" # weekly
 

.github/workflows/codeql.yml

@@ -2,9 +2,9 @@ name: "CodeQL"
 
 on:
   push:
-    branches: ["master"]
+    branches: ["master", "release/v7"]
   pull_request:
-    branches: ["master"]
+    branches: ["master", "release/v7"]
   schedule:
     - cron: "0 0 * * 0" # weekly
 

.github/workflows/e2e.yml

@@ -9,6 +9,7 @@ on:
   push:
     branches:
       - master
+      - release/v7
   workflow_dispatch: # Allow manual triggering
 
 jobs:

.github/workflows/publish-maven.yml

@@ -4,7 +4,7 @@ on:
   workflow_run:
     workflows: ["Java CI", "E2E Tests"]
     types: [completed]
-    branches: [master]
+    branches: [master, release/v7]
 
 permissions:
   contents: read
@@ -18,10 +18,10 @@ concurrency:
 jobs:
   publish:
     runs-on: ubuntu-latest
-    # Only consider successful completions on master from push events
+    # Only consider successful completions on master / release branches from push events
     if: >
       github.event.workflow_run.conclusion == 'success' &&
-      github.event.workflow_run.head_branch == 'master' &&
+      (github.event.workflow_run.head_branch == 'master' || github.event.workflow_run.head_branch == 'release/v7') &&
       github.event.workflow_run.event == 'push'
 
     steps: