Build(deps): Bump gradle/gradle-build-action from 2.8.0 to 2.9.0

Bumps [gradle/gradle-build-action](https://github.com/gradle/gradle-build-action) from 2.8.0 to 2.9.0.
- [Release notes](https://github.com/gradle/gradle-build-action/releases)
- [Commits](https://github.com/gradle/gradle-build-action/compare/ef76a971e2fa3f867b617efd72f2fbd72cf6f8bc...842c587ad8aa4c68eeba24c396e15af4c2e9f30a)

---
updated-dependencies:
- dependency-name: gradle/gradle-build-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

.github/workflows/unit-tests.yml

@@ -30,7 +30,7 @@ jobs:
                 if: ${{ always() }}
                 run: scripts/deleteOldComments.sh "test" "Unit" ${{github.event.number}}
             -   name: Run unit tests with coverage
-                uses: gradle/gradle-build-action@ef76a971e2fa3f867b617efd72f2fbd72cf6f8bc # v2.8.0
+                uses: gradle/gradle-build-action@842c587ad8aa4c68eeba24c396e15af4c2e9f30a # v2.9.0
                 with:
                     arguments: jacocoTestGplayDebugUnitTest
             -   name: Upload failing results