Trying to fix docker context path

.github/workflows/node.js.yml

@@ -21,6 +21,7 @@ jobs:
       with:
         image: finshark/finsharp-app
         registry: gcr.io
+        dockerfile: ./frontend/Dockerfile
         directory: ./frontend
         username: _json_key
         password: ${{ secrets.GCP_SA_KEY }}