Add docker buildx pre-requisites (#2408)

.github/workflows/publish-canary.yaml

@@ -105,6 +105,14 @@ jobs:
           echo "INFO: Normalizing repository name (lowercase)"
           echo "repository_owner=$(echo ${{ github.repository_owner }} | tr '[:upper:]' '[:lower:]')" >> $GITHUB_OUTPUT
       
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+        with:
+          version: latest
+
       # Unstable builds - run at your own risk
       - name: Build and Push
         uses: docker/build-push-action@v3