close the ws unless the ws is disconnected (vocodedev#299)

Author: ajar98

vocode/streaming/telephony/conversation/vonage_call.py

@@ -107,13 +107,17 @@ async def attach_ws_and_start(self, ws: WebSocket):
  from_phone_number=self.from_phone,
  )
  )
+ disconnected = False
  while self.active:
  try:
  chunk = await ws.receive_bytes()
  self.receive_audio(chunk)
  except WebSocketDisconnect:
  self.logger.debug("Websocket disconnected")
+ disconnected = True
  break
+ if not disconnected:
+ await ws.close()
  await self.config_manager.delete_config(self.id)
  await self.tear_down()