po: Update pt.po

Here is the Git patch of the updated GnuPG pt.po translation.

From d05a67bc357752ab64521a34bdd4bb461998d78d Mon Sep 17 00:00:00 2001
From: Daniel Cerqueira <dan.git@lispclub.com>
Date: Fri, 2 Aug 2024 14:21:47 +0100
Subject: [PATCH GnuPG] po: Update Portuguese Translation.

• Signed-off-by: Daniel Cerqueira <dan.git@lispclub.com>