ci(deps): bump bazel-contrib/setup-bazel from 0.8.7 to 0.15.0

Bumps [bazel-contrib/setup-bazel](https://github.com/bazel-contrib/setup-bazel) from 0.8.7 to 0.15.0.
- [Release notes](https://github.com/bazel-contrib/setup-bazel/releases)
- [Commits](https://github.com/bazel-contrib/setup-bazel/commits/0.15.0)

---
updated-dependencies:
- dependency-name: bazel-contrib/setup-bazel
  dependency-version: 0.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/weekly-checksum-update.yml

@@ -45,7 +45,7 @@ jobs:
           fetch-depth: 0
 
       - name: Set up Bazel
-        uses: bazel-contrib/setup-bazel@0.8.7
+        uses: bazel-contrib/setup-bazel@0.15.0
         with:
           bazelisk-cache: true
           disk-cache: ${{ github.workflow }}