Revert copilot change

Author: spetrescu84

.github/workflows/validate-pr-ab-id.yml

@@ -36,7 +36,7 @@ jobs:
         env:
           PR_BODY: ${{ github.event.pull_request.body }}
         run: |
-          result=$(echo "$PR_BODY" | grep -oP '(?<=AB#)\d+' | head -1 || true)
+          result=$(echo "$PR_BODY" | grep -oP '(?<=#)\d+')
           echo "id=${result}" >> "$GITHUB_OUTPUT"
 
   # Get Pull request ID