update: xai增加max_tokens,max_words等参数

maubot_llmplus/thrid_platform.py

@@ -144,7 +144,7 @@ class XAi(Platform):
         }
 
         if 'max_tokens' in self.config and self.max_tokens:
-            data["max_tokens"] = self.max_tokens
+            request_body["max_tokens"] = self.max_tokens
 
         if 'temperature' in self.config and self.temperature:
             request_body["temperature"] = self.temperature