Update container CI to use buildx

.github/workflows/container-ci.yml

@@ -34,6 +34,12 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
+      - name : Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: "docker/setup-buildx-action@v3"
+
       - name: Extract Docker metadata
         id: metadata
         uses: docker/metadata-action@v4
@@ -48,10 +54,10 @@ jobs:
             latest
 
       - name: Build and push to GHCR
-        uses: docker/build-push-action@v4
+        uses: docker/build-push-action@v5
         with:
           context: .
           push: true
-          platforms: linux/amd64,linux/arm64
+          platforms: "linux/amd64,linux/arm64"
           tags: ${{ steps.metadata.outputs.tags }}
           labels: ${{ steps.metadata.outputs.labels }}