use container registry

Author: plars

.github/workflows/server-publish-oci-image.yml

@@ -23,6 +23,10 @@ jobs:
     steps:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
+        with:
+          config-inline: |
+            [registry."docker.io"]
+              mirrors = ["https://github-runner-dockerhub-cache.canonical.com:5000"]
 
       - name: Checkout repository
         uses: actions/checkout@v3