remove List imports

backend/apps/rag/search/serper.py

@@ -1,6 +1,6 @@
 import json
 import logging
-from typing import List, Optional
+from typing import Optional
 import requests
 
 from apps.rag.search.main import SearchResult, get_filtered_results
@@ -11,7 +11,7 @@ log.setLevel(SRC_LOG_LEVELS["RAG"])
 
 
 def search_serper(
-    api_key: str, query: str, count: int, filter_list: Optional[List[str]] = None
+    api_key: str, query: str, count: int, filter_list: Optional[list[str]] = None
 ) -> list[SearchResult]:
     """Search using serper.dev's API and return the results as a list of SearchResult objects.