update cy translation
update cy translation

Change-Id: Ie782d85f8d0697e5072a0bc02fd3536ac6f0ea8c
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/270442
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