build: bump docker/build-push-action from 2.8.0 to 2.9.0

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 2.8.0 to 2.9.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v2.8.0...v2.9.0)

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

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

.github/workflows/clang-format-image.yml

@@ -55,7 +55,7 @@ jobs:
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
       - name: Build and push Docker image
-        uses: docker/build-push-action@v2.8.0
+        uses: docker/build-push-action@v2.9.0
         with:
           context: .
           file: "clang-format-docker/Dockerfile"