build(deps): bump docker/build-push-action from 6.9.0 to 6.12.0

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 6.9.0 to 6.12.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](4f58ea7922...67a2d409c0)

---
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/action.yml

@@ -62,7 +62,7 @@ jobs:
       # Build and push Docker image with Buildx (don't push on PR)
       - name: Build and push Docker image
         id: build-and-push
-        uses: docker/build-push-action@4f58ea79222b3b9dc2c8bbdd6debcef730109a75 # v6.9.0
+        uses: docker/build-push-action@67a2d409c0a876cbe6b11854e3e25193efe4e62d # v6.12.0
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}