add setup for buildx

.gitea/workflows/haven-notify.yaml

@@ -31,10 +31,11 @@ jobs:
                 -u "${{ env.REGISTRY_USERNAME }}" \
                 --password-stdin
 
-      - name: Display Directory Structure
-        run: |
-          echo "Current directory structure:"
-          ls -lR .
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
 
       - name: Build and Push Image
         run: |