fix: use trusted env in web search loader

Signed-off-by: Wang Weixuan <wangweixvan@gmail.com>

backend/open_webui/retrieval/utils.py

@@ -71,6 +71,7 @@ def get_loader(request, url: str):
             url,
             verify_ssl=request.app.state.config.ENABLE_WEB_LOADER_SSL_VERIFICATION,
             requests_per_second=request.app.state.config.WEB_LOADER_CONCURRENT_REQUESTS,
+            trust_env=request.app.state.config.WEB_SEARCH_TRUST_ENV,
         )