Fix CI tests (#4853)

python/sglang/srt/openai_api/adapter.py

@@ -20,7 +20,7 @@ import os
 import time
 import uuid
 from http import HTTPStatus
-from typing import Any, Dict, List, Set
+from typing import Dict, List
 
 from fastapi import HTTPException, Request, UploadFile
 from fastapi.responses import ORJSONResponse, StreamingResponse