fix: 修复下载的时候，下载成功总数比一共的总数多

Author: tianxiu2b2t

core/cluster.py

@@ -373,7 +373,6 @@ async def _download(self, session: aiohttp.ClientSession, file_queues: asyncio.Q
                     r = resp
                 self.report(file, e, r)
                 continue
-            pbar.update_success()
 
     def report(self, file: File, error: Exception, resp: Optional[aiohttp.ClientResponse] = None):
         msg = error.args