[Bug][ApiServer] When modifying the task definition, inserting the task...

[Bug][ApiServer] When modifying the task definition, inserting the task definition log table will report the bug of primary key conflict #12037
Co-authored-by: N金鑫 <jinyanhui@huansi.net>

dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/TaskDefinitionServiceImpl.java

@@ -487,6 +487,7 @@ public class TaskDefinitionServiceImpl extends BaseServiceImpl implements TaskDe
         taskDefinitionToUpdate.setOperator(loginUser.getId());
         taskDefinitionToUpdate.setOperateTime(now);
         taskDefinitionToUpdate.setCreateTime(now);
+        taskDefinitionToUpdate.setId(null);
         int insert = taskDefinitionLogMapper.insert(taskDefinitionToUpdate);
         if ((update & insert) != 1) {
             logger.error("Update task definition or definitionLog error, projectCode:{}, taskDefinitionCode:{}.", projectCode, taskCode);