make sure run_at gets set for fast-path job insertion
make sure run_at gets set for fast-path job insertion

Change-Id: Iae134dca7462cd1c0bd0f97ff1e4584aed464d7e
Reviewed-on: https://gerrit.instructure.com/202827
Tested-by: Jenkins
Reviewed-by: James Williams <3a5f4ed991dbfa5c9ef76ad729d240ca12f62180@instructure.com>

instructure/inst-jobs,instructure/canvas-jobs,instructure/inst-jobs,instructure/canvas-jobs,instructure/inst-jobs,instructure/inst-jobs,instructure/canvas-jobs,instructure/canvas-jobs