test: Remove unused pytest fixtures

nextcloud_mcp_server/client/base.py

@@ -1,11 +1,11 @@
 """Base client for Nextcloud operations with shared authentication."""
 
 import logging
-from abc import ABC
-
-from functools import wraps
 import time
-from httpx import HTTPStatusError, codes, RequestError, AsyncClient
+from abc import ABC
+from functools import wraps
+
+from httpx import AsyncClient, HTTPStatusError, RequestError, codes
 
 logger = logging.getLogger(__name__)