update cy translation
update cy translation

Change-Id: I8d5fb37242611d1bb8b320751f909d524fc22098
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/281542
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>

sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms