build(deps): bump docker/bake-action from 5 to 6 in the ci group

Bumps the ci group with 1 update: [docker/bake-action](https://github.com/docker/bake-action).


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

---
updated-dependencies:
- dependency-name: docker/bake-action
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: ci
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/build-docker.yaml

@@ -37,7 +37,7 @@ jobs:
           username: ${{ secrets.QUAYIO_USERNAME }}
           password: ${{ secrets.QUAYIO_PASSWORD }}
       - name: Build and push
-        uses: docker/bake-action@v5
+        uses: docker/bake-action@v6
         with:
           builder: ${{ steps.buildx.outputs.name }}
           workdir: dockerfiles