Move mypy disable for async_timeout to mypy.ini (#593)

aioesphomeapi/connection.py

@@ -50,7 +50,6 @@ from .core import (
 )
 from .model import APIVersion
 
-# mypy: disable-error-code="import-not-found"
 if sys.version_info[:2] < (3, 11):
     from async_timeout import timeout as asyncio_timeout
 else:

mypy.ini

@@ -4,3 +4,6 @@ show_error_codes = true
 
 strict = true
 warn_unreachable = true
+
+[mypy-async_timeout.*]
+ignore_missing_imports = True