Fix more deprecation warnings (#7778)

* Remove setting up an hbmqtt broker

* Don't pass loop to web.Application in tests

* Use .query instead of deprecated .GET for aiohttp requests

* Fix closing file resource

* Do not use asyncio mark

* Notify.html5 - PyJWT: Use options to disable verify

* Yamaha: Test was still using deprecated ip

* Remove pytest-asyncio

homeassistant/components/api.py

@@ -83,7 +83,7 @@ class APIEventStream(HomeAssistantView):
         stop_obj = object()
         to_write = asyncio.Queue(loop=hass.loop)
 
-        restrict = request.GET.get('restrict')
+        restrict = request.query.get('restrict')
         if restrict:
             restrict = restrict.split(',') + [EVENT_HOMEASSISTANT_STOP]