fix for pr update

src/gradio_space_ci/webhook.py

@@ -299,7 +299,8 @@ async def trigger_ci_on_pr(payload: WebhookPayload, task_queue: BackgroundTasks)
         for discussion in get_repo_discussions(repo_id=space_id, repo_type="space"):
             if discussion.is_pull_request and discussion.status == "open":
                 # Was the pr updated by an untrusted author ?
-                event_author = discussion._event["author"]["name"]  # username of that event
+                details = get_discussion_details(repo_id=space_id, repo_type="space", discussion_num=pr_num)
+                event_author = details.events[-1]._event["author"]["name"]  # username of that event
                 if event_author not in EPHEMERAL_SPACES_CONFIG["trusted_authors"]:
                     # Untrusted author, we unset the config as part or security reasons
                     unset_config(space_id=space_id, pr_num=discussion.num)