build(deps): bump docker/bake-action from 5 to 6

Bumps [docker/bake-action](https://github.com/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
...

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

.github/workflows/builder.yml

@@ -28,7 +28,7 @@ jobs:
           password: ${{ secrets.GHA_PAT }}
 
       - name: Build and push
-        uses: docker/bake-action@v5
+        uses: docker/bake-action@v6
         with:
           push: true
           provenance: false