buildx cache

Author: Aduril

.github/workflows/build-demo-stuff.yaml

@@ -15,7 +15,8 @@ jobs:
     steps:
       - uses: actions/checkout@v4
         name: checkout
-
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
       - name: Docker "connector" meta
         id: consumer-connector-meta
         uses: docker/metadata-action@v4