community/sdl2: take over maintainership

maintainer has not had any commits in 6 years

community/sdl2/APKBUILD

 # Contributor: August Klein <amatcoder@gmail.com>
-# Maintainer: August Klein <amatcoder@gmail.com>
+# Maintainer: psykose <alice@ayaya.dev>
 pkgname=sdl2
 pkgver=2.0.20
-pkgrel=3
+pkgrel=4
 pkgdesc="development library designed to provide low level access to audio, keyboard, mouse, joystick and graphics"
 url="https://www.libsdl.org"
 arch="all"