Add init return type to integrations (#87523)

Add type hints to integrations

homeassistant/components/reddit/sensor.py

@@ -94,7 +94,7 @@ def setup_platform(
 class RedditSensor(SensorEntity):
     """Representation of a Reddit sensor."""
 
-    def __init__(self, reddit, subreddit: str, limit: int, sort_by: str):
+    def __init__(self, reddit, subreddit: str, limit: int, sort_by: str) -> None:
         """Initialize the Reddit sensor."""
         self._reddit = reddit
         self._subreddit = subreddit