update pt translation
update pt translation

Change-Id: I802649bef9b611704052aec05bfeef2a54a13548
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/241886
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