fix: 修复openai计算token错误

(cherry picked from commit 3d1b3ea)

apps/setting/models_provider/impl/openai_model_provider/model/llm.py

@@ -46,14 +46,14 @@ def new_instance(model_type, model_name, model_credential: Dict[str, object], **
 
     def get_num_tokens_from_messages(self, messages: List[BaseMessage]) -> int:
         try:
-            super().get_num_tokens_from_messages(messages)
+            return super().get_num_tokens_from_messages(messages)
         except Exception as e:
             tokenizer = TokenizerManage.get_tokenizer()
             return sum([len(tokenizer.encode(get_buffer_string([m]))) for m in messages])
 
     def get_num_tokens(self, text: str) -> int:
         try:
-            super().get_num_tokens(text)
+            return super().get_num_tokens(text)
         except Exception as e:
             tokenizer = TokenizerManage.get_tokenizer()
             return len(tokenizer.encode(text))