[lint] improve ruff check (#11922)

Co-authored-by: Xiaoyu Zhang <35585791+BBuf@users.noreply.github.com>

python/sglang/srt/entrypoints/openai/serving_responses.py

@@ -14,6 +14,7 @@ from typing import TYPE_CHECKING, Any, AsyncGenerator, AsyncIterator, Optional,
 
 import jinja2
 import openai.types.responses as openai_responses_types
+import orjson
 from fastapi import Request
 from fastapi.responses import ORJSONResponse
 from openai.types.responses import (
@@ -1063,7 +1064,7 @@ class OpenAIServingResponses(OpenAIServingChat):
                 ):
                     function_name = previous_item.recipient[len("browser.") :]
                     action = None
-                    parsed_args = ororjson.loads(previous_item.content[0].text)
+                    parsed_args = orjson.loads(previous_item.content[0].text)
                     if function_name == "search":
                         action = openai_responses_types.response_function_web_search.ActionSearch(
                             type="search",