hass_nabucasa has a race restarting the remote because ClientPeer.wait does not wait for task to finish

[bdraco]

It tries to make a connect task before the previous one is done

This was noticed by the assert added in #340

I've already fixed it in #344 but need to extract it into a new PR

Feb 09 13:49:21 homeassistant homeassistant[565]: 2025-02-09 07:49:21.895 DEBUG (MainThread) [snitun.client.client_peer] Opening connection to us-east-1-14.ui.nabu.casa:443
Feb 09 13:49:21 homeassistant homeassistant[565]: 2025-02-09 07:49:21.990 ERROR (MainThread) [homeassistant] Error doing job: Task exception was never retrieved (None)
Feb 09 13:49:21 homeassistant homeassistant[565]: Traceback (most recent call last):
Feb 09 13:49:21 homeassistant homeassistant[565]:   File "/usr/local/lib/python3.13/site-packages/hass_nabucasa/remote.py", line 497, in _reconnect_snitun
Feb 09 13:49:21 homeassistant homeassistant[565]:     await self.connect()
Feb 09 13:49:21 homeassistant homeassistant[565]:   File "/usr/local/lib/python3.13/site-packages/hass_nabucasa/remote.py", line 422, in connect
Feb 09 13:49:21 homeassistant homeassistant[565]:     await self._snitun.connect(
Feb 09 13:49:21 homeassistant homeassistant[565]:     ...<4 lines>...
Feb 09 13:49:21 homeassistant homeassistant[565]:     )
Feb 09 13:49:21 homeassistant homeassistant[565]:   File "/usr/local/lib/python3.13/site-packages/snitun/utils/aiohttp_client.py", line 91, in connect
Feb 09 13:49:21 homeassistant homeassistant[565]:     await self._client.start(
Feb 09 13:49:21 homeassistant homeassistant[565]:     ...<5 lines>...
Feb 09 13:49:21 homeassistant homeassistant[565]:     )
Feb 09 13:49:21 homeassistant homeassistant[565]:   File "/usr/local/lib/python3.13/site-packages/snitun/client/client_peer.py", line 124, in start
Feb 09 13:49:21 homeassistant homeassistant[565]:     assert not self._handler_task, "SniTun connection already running"
Feb 09 13:49:21 homeassistant homeassistant[565]:            ^^^^^^^^^^^^^^^^^^^^^^
Feb 09 13:49:21 homeassistant homeassistant[565]: AssertionError: SniTun connection already running