fix: Route on DeepNews sync

Author: robcaulk

asknews_sdk/api/chat.py

@@ -596,7 +596,7 @@ def get_deep_news(
         """
         response = self.client.request(
             method="POST",
-            endpoint="/v1/chat/deepnews/agent",
+            endpoint="/v1/chat/deepnews",
             body=CreateDeepNewsRequest(
                 messages=messages,
                 model=model,