DX-3084 Remove fetchDepth in favor of ref (#888)

Author: ajrice6713

.github/workflows/listener.yml

@@ -60,7 +60,7 @@ jobs:
     steps:
       - uses: actions/checkout@v3
         with:
-          fetch-depth: '2'
+          ref: ${{ github.event.client_payload.branchName }}
 
       - name: Set PR number as env variable
         run: |