Return 200 when to post an none schedule
Return 200 when to post an none schedule

1, Throw the error of job service to UI when to create job schedule.
2, Return 200 when to save none without schedule.

Fixed #7675

Signed-off-by: wang yan <63b20dea16c07a874bc9bf767df5575676113cb6@vmware.com>

steven-zou/harbor,reasonerjt/harbor,wy65701436/harbor,wy65701436/harbor,wy65701436/harbor,steven-zou/harbor,wy65701436/harbor,reasonerjt/harbor,reasonerjt/harbor,steven-zou/harbor,wy65701436/harbor,steven-zou/harbor,reasonerjt/harbor,reasonerjt/harbor,wy65701436/harbor,reasonerjt/harbor,steven-zou/harbor,steven-zou/harbor