rgw/notifications: cleanup all coroutines after sending the notification

this is fixing a regression from: 6b6592f

Fixes: https://tracker.ceph.com/issues/63580

Signed-off-by: Yuval Lifshitz <ylifshit@redhat.com>

src/rgw/rgw_op.cc

@@ -7283,14 +7283,15 @@ void RGWDeleteMultiObj::handle_individual_object(const rgw_obj_key& o, optional_
     op_ret = 0;
   }
 
-  send_partial_response(o, del_op->result.delete_marker, del_op->result.version_id, op_ret, formatter_flush_cond);
 
   // send request to notification manager
   int ret = res->publish_commit(this, obj_size, ceph::real_clock::now(), etag, version_id);
   if (ret < 0) {
     ldpp_dout(this, 1) << "ERROR: publishing notification failed, with error: " << ret << dendl;
     // too late to rollback operation, hence op_ret is not set here
   }
+
+  send_partial_response(o, del_op->result.delete_marker, del_op->result.version_id, op_ret, formatter_flush_cond);
 }
 
 void RGWDeleteMultiObj::execute(optional_yield y)