update ru translation
update ru translation

Change-Id: I3d67def607789bd73b86668a320c93a00758eaa0

grahamb/canvas-lms,venturehive/canvas-lms,venturehive/canvas-lms,djbender/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,HotChalk/canvas-lms,roxolan/canvas-lms,grahamb/canvas-lms,redconfetti/canvas-lms,HotChalk/canvas-lms,grahamb/canvas-lms,sfu/canvas-lms,fronteerio/canvas-lms,SwinburneOnline/canvas-lms,djbender/canvas-lms,grahamb/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,fronteerio/canvas-lms,djbender/canvas-lms,venturehive/canvas-lms,redconfetti/canvas-lms,fronteerio/canvas-lms,redconfetti/canvas-lms,grahamb/canvas-lms,HotChalk/canvas-lms,HotChalk/canvas-lms,SwinburneOnline/canvas-lms,SwinburneOnline/canvas-lms,roxolan/canvas-lms,fronteerio/canvas-lms,roxolan/canvas-lms,redconfetti/canvas-lms,SwinburneOnline/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,roxolan/canvas-lms