Exception when TV is switched into standby mode

This exception happens when the TV is turned off, might be related that I have disabled the Quick Start+ feature,

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/aiopylgtv/webos_client.py", line 340, in ping_handler
    ping_waiter = await ws.ping()
  File "/usr/local/lib/python3.9/site-packages/websockets/legacy/protocol.py", line 657, in ping
    await self.ensure_open()
  File "/usr/local/lib/python3.9/site-packages/websockets/legacy/protocol.py", line 735, in ensure_open
    raise self.connection_closed_exc()
websockets.exceptions.ConnectionClosedOK: code = 1001 (going away), reason = server shutting down

The exception needs to be caught here:

aiopylgtv/aiopylgtv/webos_client.py

Lines 356 to 359 in 6b676ea

    
           except ( 
        
               asyncio.TimeoutError, 
        
               asyncio.CancelledError, 
        
               websockets.exceptions.ConnectionClosedError,

I can make a PR to fix it if there is a plan to make a new release.

This one is also done, thanks.

	except (
	asyncio.TimeoutError,
	asyncio.CancelledError,
	websockets.exceptions.ConnectionClosedError,