Update external-pr-sync.yml

Author: ammarwa

.github/workflows/external-pr-sync.yml

@@ -16,7 +16,7 @@ jobs:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
           # Fetching fresh PR body via gh cli is more reliable than event payload for 'edited'
-          PR_BODY=$(gh pr view ${{ github.event.pull_request.number }} --json body --jq .body)
+          PR_BODY=${{ github.event.pull_request.body }}
           # Make body safe for multiline output
           PR_BODY="${PR_BODY//'%'/'%25'}"
           PR_BODY="${PR_BODY//$'\n'/'%0A'}"