update en-CA translation
update en-CA translation

Change-Id: I148370e1c9a3a9c3ac2a9ba08fd87c77745965ed
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/232888
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>
(cherry picked from commit 82b423a3196bd363ac766521f70a6c29334f827f)
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/232869
Tested-by: KC Naegle <9fbecd016338f9910821a8a5d5d0ae4fc9abfaa5@instructure.com>
Reviewed-by: KC Naegle <9fbecd016338f9910821a8a5d5d0ae4fc9abfaa5@instructure.com>
QA-Review: KC Naegle <9fbecd016338f9910821a8a5d5d0ae4fc9abfaa5@instructure.com>
Product-Review: KC Naegle <9fbecd016338f9910821a8a5d5d0ae4fc9abfaa5@instructure.com>

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