fix: 节点备注未赋值

src/Hotline/FlowEngine/Workflows/WorkflowDomainService.cs

@@ -1419,6 +1419,7 @@ namespace Hotline.FlowEngine.Workflows
             step.NextStepCode = dto.NextStepCode;
             step.IsSms = dto.IsSms;
             step.Opinion = dto.Opinion;
+            step.Remark = dto.Remark;
 
             //step办理状态
             HandleStep(current, step, dto.Opinion, dto.NextStepCode);