dec-15 create docker linting in github

Author: shree007

.github/workflows/docker-pipeline.yaml

@@ -11,7 +11,7 @@ on:
 jobs:
   lint:
     name: lint dockerfiles
-    runs-on: ubuntu-test
+    runs-on: [ubuntu-test]
     steps:
      - name: Checkout Code
        uses: actions/checkout@v3