fix: circular reference of exceptions

fixes zabbix#31

Author: Adam Chovanec

zabbix_utils/aioapi.py

@@ -182,7 +182,7 @@ async def __aclose_session(self) -> None:
 
  async def __exception(self, exc) -> None:
  await self.__aclose_session()
- raise exc from exc
+ raise exc
 
  def __close_session(self) -> None:
  if self.__internal_client: