build(deps): bump docker/build-push-action from 6.7.0 to 6.8.0 (#2139)

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 6.7.0 to 6.8.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@5cd11c3...32945a3)

---
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/qns.yml

@@ -55,7 +55,7 @@ jobs:
             # set latest tag for default branch
             type=raw,value=latest,enable={{is_default_branch}}
 
-      - uses: docker/build-push-action@5cd11c3a4ced054e52742c5fd54dca954e0edd85 # v6.7.0
+      - uses: docker/build-push-action@32945a339266b759abcbdc89316275140b0fc960 # v6.8.0
         if: github.event_name != 'pull_request'
         with:
           push: true
@@ -66,7 +66,7 @@ jobs:
           cache-to: type=gha,mode=max
           platforms: 'linux/amd64, linux/arm64'
 
-      - uses: docker/build-push-action@5cd11c3a4ced054e52742c5fd54dca954e0edd85 # v6.7.0
+      - uses: docker/build-push-action@32945a339266b759abcbdc89316275140b0fc960 # v6.8.0
         id: docker_build_and_push
         with:
           tags: ${{ steps.meta.outputs.tags }}