安装websocket-client最新版本0.51.0会导致连接超时

安装websocket-client最新版本0.51.0会导致连接超时，需要限定版本号为0.48.0，记录该问题作为备忘

```
Traceback (most recent call last):
File "E:\project\airtestide\airtest-ide\app\plugins\poco\poco_probe.py", line
209, in initPoco
self.c.wait_connected()
File "e:\project\airtestide\poco\poco\utils\simplerpc\rpcclient.py", line 27,
in wait_connected
return self.connect()
File "e:\project\airtestide\poco\poco\utils\simplerpc\rpcclient.py", line 23,
in connect
self._wait_connected(timeout)
File "e:\project\airtestide\poco\poco\utils\simplerpc\rpcclient.py", line 38,
in _wait_connected
raise RpcConnectionError("Connecting Timeout")
poco.utils.simplerpc.simplerpc.RpcConnectionError: Connecting Timeout
```