limit rufus-scheduler dependency
limit rufus-scheduler dependency

cronline was removed in 3.5; need to switch to fugit at some point

Change-Id: I8422c9d5572237dc007b90bfb6f3221ad372b423
Reviewed-on: https://gerrit.instructure.com/150647
Tested-by: Jenkins
Reviewed-by: Jayce Higgins <8f0644d105785a923e938c7b131e3ab930cb6139@instructure.com>

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