Bump docker/bake-action from 6.7.0 to 6.8.0

Bumps [docker/bake-action](https://github.com/docker/bake-action) from 6.7.0 to 6.8.0.
- [Release notes](https://github.com/docker/bake-action/releases)
- [Commits](https://github.com/docker/bake-action/compare/v6.7.0...v6.8.0)

---
updated-dependencies:
- dependency-name: docker/bake-action
  dependency-version: 6.8.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

.github/workflows/image.yml

@@ -36,7 +36,7 @@ jobs:
           password: ${{secrets.PAT_TOKEN}}
       -
         name: Build and push
-        uses: docker/bake-action@v6.7.0
+        uses: docker/bake-action@v6.8.0
         with:
           files: build/docker-bake.hcl
           push: true