fix CI

api/core/model_runtime/utils/helper.py

@@ -24,4 +24,4 @@ def convert_llm_result_chunk_to_str(content: None | str | list[PromptMessageCont
         )
     else:
         message_text = str(content)
-    return message_text
+    return message_text

api/core/workflow/nodes/llm/node.py

@@ -268,7 +268,6 @@ class LLMNode(BaseNode[LLMNodeData]):
 
         return self._handle_invoke_result(invoke_result=invoke_result)
 
-
     def _handle_invoke_result(self, invoke_result: LLMResult | Generator) -> Generator[NodeEvent, None, None]:
         if isinstance(invoke_result, LLMResult):
             message_text = convert_llm_result_chunk_to_str(invoke_result.message.content)