ci: use docker cloud builder

.github/workflows/release.yml

@@ -42,6 +42,10 @@ jobs:
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
+        with:
+          driver: cloud
+          endpoint: "meienberger/runtipi-builder"
+          install: true
 
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v3