ci(deps): Bump docker/build-push-action from 6.12.0 to 6.13.0 (#516)

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 6.12.0 to 6.13.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@67a2d40...ca877d9)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/rootfs.yaml

@@ -56,7 +56,7 @@ jobs:
         uses: docker/setup-buildx-action@6524bf65af31da8d45b59e8c27de4bd072b392f5 # v3.8.0
 
       - name: Build Image
-        uses: docker/build-push-action@67a2d409c0a876cbe6b11854e3e25193efe4e62d # v6.12.0
+        uses: docker/build-push-action@ca877d9245402d1537745e0e356eab47c3520991 # v6.13.0
         with:
           context: rootfs/
           file: rootfs/Dockerfile