Fix error in rsync task update

Here is the error From FreeNAS 11.3 INTERNAL

def test_10_Disable_rsync_task(rsynctask_dict):
id = rsynctask_dict['id']
results = PUT(f'/rsynctask/id/{id}/', {'enabled': False})
> assert results.status_code == 200, results.text
E AssertionError: {
E "datastore_update.job": [
E {
E "message": "job field not recognized",
E "errno": 22
E }
E ]
E }
E assert 422 == 200
E -422
E +200

https: / /builds .ixsystems .com /view /QA %20Tests /view /All /job /FreeNAS %20 - %2011 .3 %20 - %20Internal %20(API %20Tests) /lastCompletedBuild /testReport /api2 /rsync /Run_Tests__API_2_0__test_10_Disable_rsync_task /

it is also seen in FreeNAS - Master - Incremental Build https://builds.ixsystems.com/view/QA%20Tests/view/All/job/FreeNAS%20-%20Master%20-%20Incremental%20API%20Tests/96/testReport/junit/api2/rsync/Run_Tests___API_2_0___test_10_Disable_rsync_task/