fix NoneType bug for ws_client.py microphone mode

zhaomingwork

2023-05-13 3dcaa9df2f056fefd87736f1cd1cd32679018ba9

 funasr/runtime/websocket/CMakeLists.txt

@@ -8,7 +8,7 @@
option(ENABLE_WEBSOCKET "Whether to build websocket server" ON)
 
if(ENABLE_WEBSOCKET)
  cmake_policy(SET CMP0135 NEW)
  # cmake_policy(SET CMP0135 NEW)

  include(FetchContent)
  FetchContent_Declare(websocketpp