update sis batch progress on an interval, default 2s
update sis batch progress on an interval, default 2s

Rather than based on a # of rows processed metric

fixes CNVS-14640

test plan: run a large-ish SIS batch, and it should succeed as you'd
expect. the progress in the UI/API should still update as it runs (and
when it completes), but maybe not quite as often.

Change-Id: I44e30c1bbd1cd70ade7633c48389bf6bf0d04773
Reviewed-on: https://gerrit.instructure.com/39281
Reviewed-by: Zach Wily <9de8c4480303b5335cd2a33eefe814615ba3612a@instructure.com>
Reviewed-by: Cody Cutrer <c4fe2b1d90ef8f2548c8aeabfa633434316f0305@instructure.com>
Product-Review: Brian Palmer <3cb4e1df5ec4da2c7c4af7c52cec8cf340a55a10@instructure.com>
QA-Review: Brian Palmer <3cb4e1df5ec4da2c7c4af7c52cec8cf340a55a10@instructure.com>
Tested-by: Brian Palmer <3cb4e1df5ec4da2c7c4af7c52cec8cf340a55a10@instructure.com>

Unow/canvas-lms,HotChalk/canvas-lms,fronteerio/canvas-lms,venturehive/canvas-lms,efrj/canvas-lms,leftplusrightllc/canvas-lms,djbender/canvas-lms,djbender/canvas-lms,samuels410/greatlakes-lms,sdeleon28/canvas-lms,fronteerio/canvas-lms,venturehive/canvas-lms,whalejasmine/canvas-lms,Jyaasa/canvas-lms,wrdsb/canvas-lms,sdeleon28/canvas-lms,wye0220/shindig-canvas,roxolan/canvas-lms,venturehive/canvas-lms,tgroshon/canvas-lms,Jyaasa/canvas-lms,juoni/canvas-lms,utkarshx/canvas-lms,roxolan/canvas-lms,HotChalk/canvas-lms,va7map/canvas-lms,djbender/canvas-lms,efrj/canvas-lms,samuels410/greatlakes-lms,sdeleon28/canvas-lms,jay3126/canvas-lms,SwinburneOnline/canvas-lms,leftplusrightllc/canvas-lms,fronteerio/canvas-lms,whalejasmine/canvas-lms,sfu/canvas-lms,Rvor/canvas-lms,shidao-fm/canvas-lms,sfu/canvas-lms,antoniuslin/canvas-lms,tgroshon/canvas-lms,Rvor/canvas-lms,skmezanul/canvas-lms,juoni/canvas-lms,efrj/canvas-lms,kyroskoh/canvas-lms,greyhwndz/canvas-lms,grahamb/canvas-lms,HotChalk/canvas-lms,samuels410/greatlakes-lms,sdeleon28/canvas-lms,HotChalk/canvas-lms,venturehive/canvas-lms,ShreniiNepal/shrenii_lmp,utkarshx/canvas-lms,leftplusrightllc/canvas-lms,antoniuslin/canvas-lms,SwinburneOnline/canvas-lms,skmezanul/canvas-lms,utkarshx/canvas-lms,Rvor/canvas-lms,jay3126/canvas-lms,juoni/canvas-lms,va7map/canvas-lms,tgroshon/canvas-lms,ShreniiNepal/shrenii_lmp,skmezanul/canvas-lms,redconfetti/canvas-lms,efrj/canvas-lms,SwinburneOnline/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,Unow/canvas-lms,redconfetti/canvas-lms,grahamb/canvas-lms,antoniuslin/canvas-lms,Jyaasa/canvas-lms,whalejasmine/canvas-lms,jay3126/canvas-lms,va7map/canvas-lms,antoniuslin/canvas-lms,leftplusrightllc/canvas-lms,greyhwndz/canvas-lms,grahamb/canvas-lms,shidao-fm/canvas-lms,sfu/canvas-lms,grahamb/canvas-lms,redconfetti/canvas-lms,Jyaasa/canvas-lms,roxolan/canvas-lms,ShreniiNepal/shrenii_lmp,roxolan/canvas-lms,Rvor/canvas-lms,redconfetti/canvas-lms,skmezanul/canvas-lms,sfu/canvas-lms,utkarshx/canvas-lms,greyhwndz/canvas-lms,kyroskoh/canvas-lms,va7map/canvas-lms,grahamb/canvas-lms,wrdsb/canvas-lms,wye0220/shindig-canvas,wrdsb/canvas-lms,SwinburneOnline/canvas-lms,fronteerio/canvas-lms,jay3126/canvas-lms,kyroskoh/canvas-lms,djbender/canvas-lms,wye0220/shindig-canvas,shidao-fm/canvas-lms,whalejasmine/canvas-lms,greyhwndz/canvas-lms,sfu/canvas-lms,shidao-fm/canvas-lms,tgroshon/canvas-lms,samuels410/greatlakes-lms,kyroskoh/canvas-lms,ShreniiNepal/shrenii_lmp,wrdsb/canvas-lms,Unow/canvas-lms,juoni/canvas-lms