dec-17 fix github pipeline

Author: shree007

.github/workflows/docker-pipeline.yaml

@@ -6,12 +6,13 @@ on:
   push:
     branches:
       - "create-github-pipeline-for-docker"
+      - "main"
   pull_request:
 
 jobs:
   lint:
     name: lint dockerfiles
-    runs-on: [ubuntu-test]
+    runs-on: [ubuntu-latest]
     steps:
      - name: Checkout Code
        uses: actions/checkout@v3