Update funasr_wss_server.py (#1322)

解决报

```python
return await cast(
  File "funasr_wss_server.py", line 188, in ws_serve
    int(websocket.status_dict_asr_online["chunk_size"][1]) * 60 / websocket.chunk_interval)
ValueError: invalid literal for int() with base 10: ','
^CTraceback (most recent call last):
  File "funasr_wss_server.py", line 302, in <module>
    asyncio.get_event_loop().run_forever()
```