Bump docker/build-push-action from 6.11.0 to 6.13.0 in the gh-actions group (#81)

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

Author: dependabot[bot]

.github/workflows/build.yml

@@ -115,7 +115,7 @@ jobs:
         password: ${{ secrets.GITHUB_TOKEN }}
     - name: Build Docker images
       id: build
-      uses: docker/build-push-action@b32b51a8eda65d6793cd0494a773d4f6bcef32dc # v6.11.0
+      uses: docker/build-push-action@ca877d9245402d1537745e0e356eab47c3520991 # v6.13.0
       with:
         # provenance: false is needed to avoid unkown/unknown os/arch on ghcr
         # see: https://github.com/docker/build-push-action/issues/820