feat(pipeline-tasks): 任务更新推送时机修改。

src/pipeline-tasks/models/pipeline-task-logs.model.ts

@@ -1,6 +1,7 @@
 import { TaskStatuses } from '../enums/task-statuses.enum';
 import { PipelineUnits } from '../enums/pipeline-units.enum';
 import { Field, ObjectType } from '@nestjs/graphql';
+import { Type } from 'class-transformer';
 
 @ObjectType()
 export class PipelineTaskLogs {
@@ -8,7 +9,9 @@ export class PipelineTaskLogs {
   unit: PipelineUnits;
   @Field(() => TaskStatuses)
   status: TaskStatuses;
+  @Type(() => Date)
   startedAt?: Date;
+  @Type(() => Date)
   endedAt?: Date;
   logs = '';
 }