Fix shallow clone warning from sonar cloud

Fix shallow clone warning from sonar cloud

Author: Akshaykdubey

.github/workflows/sonar-scanner.yml

@@ -15,6 +15,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
       - name: Check for external PR
         if: ${{ !(contains(github.event.pull_request.labels.*.name, 'safe') ||
           github.event.pull_request.head.repo.full_name == github.repository ||