update pt translation
update pt translation

Change-Id: Iac82e3842bea0ed73e555e439c07f7813c952fe0
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/302894
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>

instructure/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,instructure/canvas-lms