games/wesnoth: update to 1.16.12 release (+)

Security Fixes:

• Run wesnothd server as _wesnoth:_wesnoth instead of nobody:users, improving safety and fixing a warning message in systemd 246+

Translations:

• Updated translations: Czech, German, Italian

Miscellaneous and Bug Fixes:

• Fix a regression from 1.13.11 that inverted horizontal scrolling with SDL versions 2.0.18+ on X11 and versions 2.0.20+ on Wayland

Sponsored by: Serenity Cybersecurity, LLC