update pt translation
update pt translation

Change-Id: I66e42b3495d6e821568e86a1382d4d868e72b53f
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/263628
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