fix: LLM invoke error should not be raised (#11141)

Signed-off-by: -LAN- <laipz8200@outlook.com>

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

             )
             return
         except Exception as e:
-            logger.exception(f"Node {self.node_id} failed to run")
             yield RunCompletedEvent(
                 run_result=NodeRunResult(
                     status=WorkflowNodeExecutionStatus.FAILED,