✏️ add bot re-export

Author: yanyongyu

nonebot/adapters/github/__init__.py

@@ -1,6 +1,8 @@
 from .event import *
 from .bot import Bot as Bot
+from .bot import OAuthBot as OAuthBot
 from .adapter import Adapter as Adapter
+from .bot import GitHubBot as GitHubBot
 from .message import Message as Message
 from .exception import ActionFailed as ActionFailed
 from .exception import NetworkError as NetworkError