update pt translation
update pt translation

Change-Id: Ifb54131bcdad42cc31fd71a9bf8df7aaf8992d25
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/258693
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>

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