Bump docker/build-push-action from 6.8.0 to 6.9.0

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 6.8.0 to 6.9.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v6.8.0...v6.9.0)

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

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

Author: dependabot[bot]

.github/workflows/docker-3.2.yml

@@ -48,7 +48,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Build and push
-        uses: docker/build-push-action@v6.8.0
+        uses: docker/build-push-action@v6.9.0
         with:
           push: ${{ github.event_name != 'pull_request' }}
           context: .