remove List imports

backend/apps/rag/search/serply.py

@@ -1,6 +1,6 @@
 import json
 import logging
-from typing import List, Optional
+from typing import Optional
 import requests
 from urllib.parse import urlencode
 
@@ -19,7 +19,7 @@ def search_serply(
     limit: int = 10,
     device_type: str = "desktop",
     proxy_location: str = "US",
-    filter_list: Optional[List[str]] = None,
+    filter_list: Optional[list[str]] = None,
 ) -> list[SearchResult]:
     """Search using serper.dev's API and return the results as a list of SearchResult objects.