Bump bazel-contrib/.github from 5 to 6

Bumps [bazel-contrib/.github](https://github.com/bazel-contrib/.github) from 5 to 6.
- [Commits](bazel-contrib/.github@v5...v6)

---
updated-dependencies:
- dependency-name: bazel-contrib/.github
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/release.yml

@@ -10,6 +10,6 @@ on:
 
 jobs:
   release:
-    uses: bazel-contrib/.github/.github/workflows/release_ruleset.yaml@v5
+    uses: bazel-contrib/.github/.github/workflows/release_ruleset.yaml@v6
     with:
       release_files: bazel_rules_pmd-*.tar.gz