build(deps): bump docker/build-push-action in /.github/workflows

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 6.9.0 to 6.11.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@4f58ea7...b32b51a)

---
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]>

.github/workflows/docker.yml

@@ -59,7 +59,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Build container image
-        uses: docker/build-push-action@4f58ea79222b3b9dc2c8bbdd6debcef730109a75 # v6.9.0
+        uses: docker/build-push-action@b32b51a8eda65d6793cd0494a773d4f6bcef32dc # v6.11.0
         with:
           platforms: linux/amd64,linux/arm64
           push: true