Fixing old access type

app.py

@@ -83,7 +83,7 @@ async def community(payload: WebhookPayload, task_queue: BackgroundTasks):
 
     # No need to run for README updates
     try:
-        commit_files_url = f"""{payload.repo.url.api}/compare/{payload.updatedRefs['oldSha']}..{payload.updatedRefs.newSha}?raw=true"""
+        commit_files_url = f"""{payload.repo.url.api}/compare/{payload.updatedRefs[0].oldSha}..{payload.updatedRefs[0].newSha}?raw=true"""
         response_text = requests.get(commit_files_url, headers=build_hf_headers()).text
         if 'README.md' in response_text:
             return Response("No need to trigger, its a README update.", status_code=status.HTTP_200_OK)