security/gnupg: Update to 2.3.8
Changelog:
https://lists.gnupg.org/pipermail/gnupg-announce/2022q4/000476.html
Some additional changes to submitted patch:
- Change PORTVERSION to DISTVERSION
- Generate patch using "make makepatch"
- Remove obsolete configure switch
PR: 267152
Reviewed by: adridg (maintainer)
Tested by: Dennis Clarke <dclarke@blastwave.org>