delete space on closed PR

app.py

@@ -101,15 +101,18 @@ async def post_webhook(
         and payload.event.action == "update"
         and payload.discussion is not None
         and payload.discussion.isPullRequest
-        and payload.discussion.status == "merged"
+        and (
+            payload.discussion.status == "merged"
+            or payload.discussion.status == "closed"
+        )
     ):
-        # PR merged!
+        # PR merged or closed!
         task_queue.add_task(
             delete_ci_space,
             space_id=space_id,
             pr_num=payload.discussion.num,
         )
-        logger.info("PR is merged! Delete task scheduled")
+        logger.info("PR is merged (or closed)! Delete task scheduled")
     elif (
         payload.event.scope.startswith("repo.content")
         and payload.event.action == "update"