Fixed missing imports bug and fixed linting

lightrag/kg/redis_impl.py

@@ -1,6 +1,7 @@
 import os
 from tqdm.asyncio import tqdm as tqdm_async
 from dataclasses import dataclass
+
 # aioredis is a depricated library, replaced with redis
 from redis.asyncio import Redis
 from lightrag.utils import logger