adding missing requirement

Author: Andrei Neagu

.github/workflows/piublish-dockerhub.yml

@@ -24,10 +24,13 @@ jobs:
         with:
           images: itisfoundation/ci-service-integration-library
 
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: Build and push Docker image
         uses: docker/build-push-action@v6
         with:
           platforms: linux/amd64,linux/arm64
           push: true
           tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
+          labels: ${{ steps.meta.outputs.labels }}