fix: update build workflow to use steps instead of uses for Docker job

Author: npv2k1

.github/workflows/build.yaml

@@ -16,10 +16,12 @@ on:
 
 jobs:
   docker:
-    uses: pnstack/actions/docker-publish@main
-    with:
-      platforms: linux/amd64,linux/arm64
-      dockerfile: Dockerfile
-      context: .
-      push_enabled: true
-      registry: ghcr.io
+    runs-on: ubuntu-latest
+    steps:
+      - uses: pnstack/actions/docker-publish@main
+        with:
+          platforms: linux/amd64,linux/arm64
+          dockerfile: Dockerfile
+          context: .
+          push_enabled: true
+          registry: ghcr.io