ci: Set up Buildx builder for node-pc publish (#36618)

Author: ivov

.github/workflows/build-node-pc-image.yml

@@ -44,6 +44,9 @@ jobs:
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4.0.0
+
       - name: Login to Docker registries (for pushing)
         if: github.event_name == 'push' || (github.event_name == 'workflow_dispatch' && inputs.push == true)
         uses: ./.github/actions/docker-registry-login