games/retroarch: Update 1.21.0 => 1.22.2

Changelog:
https://github.com/libretro/RetroArch/blob/v1.22.2/CHANGES.md

• Fix build with ALSA option, upstream issue: https://github.com/libretro/RetroArch/issues/18501
• Switch to tarball from upstream: excludes a bunch of packaging scripts and config, some wii specific code and a load of libretro example programs, plist is identical, distfile is smaller in 5 times.

PR: 291534
Approved by: Daniel Menelkir <dmenelkir@gmail.com> (maintainer, implicit - inactive from ~2024.08)