bugfix: fix visual recv batch counter type (#1232)

Author: shihaobai

lightllm/server/visualserver/manager.py

@@ -196,7 +196,7 @@ async def loop_for_netio_req(self):
                         self.waiting_reqs.append(recv_req)
                     else:
                         assert False, f"Error Req Inf {recv_req}"
-                self.visual_recv_max_count = min(self.visual_recv_max_count * 1.3, 256)
+                self.visual_recv_max_count = int(min(self.visual_recv_max_count * 1.3, 256))
             except zmq.ZMQError:
                 # 当队列已经开始清空的时候，将一次接受数量下调
                 self.visual_recv_max_count = 64