fix: reset http的close方法

Author: veehou

botpy/client.py

@@ -98,6 +98,8 @@ async def close(self) -> None:
 
         self._closed = True
 
+        await self.http.close()
+
     def is_closed(self) -> bool:
         return self._closed
 

botpy/http.py

@@ -87,9 +87,13 @@ def __init__(
         self.is_sandbox = is_sandbox
 
         self._token: Optional[Token] = None if not app_id else Token(app_id=app_id, access_token=token)
+        self._session: Optional[aiohttp.ClientSession] = None
         self._global_over: Optional[asyncio.Event] = None
         self._headers: Optional[dict] = None
-        self._session: Optional[aiohttp.ClientSession] = None
+
+    async def close(self) -> None:
+        if self._session:
+            await self._session.close()
 
     async def check_session(self):
         if not self._headers: