test: remove client.close() from teardown to avoid version-dependent deprecation warnings

Author: Ar-maan05

tests/server/contrib/test_redis_event_store.py

@@ -34,7 +34,6 @@ async def redis_client():
     """
     client = fakeredis.FakeRedis()
     yield client
-    await client.close()
 
 
 @pytest.fixture