Bump docker/build-push-action from 6.7.0 to 6.9.0 (#82)

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 6.7.0 to 6.9.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@5cd11c3...4f58ea7)

---
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]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/on-push-pr.yml

@@ -56,7 +56,7 @@ jobs:
             type=semver,pattern={{major}}
             type=sha
 
-      - uses: docker/build-push-action@5cd11c3a4ced054e52742c5fd54dca954e0edd85  # v6.7.0
+      - uses: docker/build-push-action@4f58ea79222b3b9dc2c8bbdd6debcef730109a75  # v6.9.0
         with:
           context: .
           push: true