Add Docker Hub registry mirror to avoid rate limits

.github/workflows/container_latest.yml

@@ -58,10 +58,17 @@ jobs:
       - name: Set up QEMU
         if: matrix.qemu
         uses: docker/setup-qemu-action@v3
+      - name: Create BuildKit config
+        run: |
+          cat > /tmp/buildkitd.toml <<EOF
+          [registry."docker.io"]
+            mirrors = ["https://mirror.gcr.io"]
+          EOF
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
         with:
           buildkitd-flags: "--debug"
+          buildkitd-config: /tmp/buildkitd.toml
       - name: Login to Docker Hub
         if: github.event_name != 'pull_request'
         uses: docker/login-action@v3