fix: remove redundant exception message

Removes the exception message content duplication in the logger
to prevent unnecessary redundancy since the exception details are
already captured by logger.exception.

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

@@ -191,7 +191,7 @@ def _run(self) -> NodeRunResult | Generator[NodeEvent | InNodeEvent, None, None]
             )
             return
         except Exception as e:
-            logger.exception(f"Node {self.node_id} failed to run: {e}")
+            logger.exception(f"Node {self.node_id} failed to run")
             yield RunCompletedEvent(
                 run_result=NodeRunResult(
                     status=WorkflowNodeExecutionStatus.FAILED,