build(deps): bump docker/build-push-action in the action-deps group

Bumps the action-deps group with 1 update: [docker/build-push-action](https://github.com/docker/build-push-action).


Updates `docker/build-push-action` from 5 to 6
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v5...v6)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/update_dashboard.yml

@@ -39,7 +39,7 @@ jobs:
               type=raw,value=latest,enable={{is_default_branch}}
 
         - name: Build and upload image
-          uses: docker/build-push-action@v5
+          uses: docker/build-push-action@v6
           with:
             context: dff/utils/docker
             file: dff/utils/docker/dockerfile_stats