SDL2: Update to 2.28.4

mingw-w64-SDL2/PKGBUILD

@@ -4,7 +4,7 @@
 _realname=SDL2
 pkgbase=mingw-w64-${_realname}
 pkgname="${MINGW_PACKAGE_PREFIX}-${_realname}"
-pkgver=2.28.3
+pkgver=2.28.4
 pkgrel=1
 pkgdesc="A library for portable low-level access to a video framebuffer, audio output, mouse, and keyboard (Version 2) (mingw-w64)"
 arch=('any')
@@ -20,7 +20,7 @@ depends=("${MINGW_PACKAGE_PREFIX}-gcc-libs"
          "${MINGW_PACKAGE_PREFIX}-vulkan")
 source=("https://libsdl.org/release/SDL2-${pkgver}.tar.gz"{,.sig}
         005-sdl-config-win-paths.patch)
-sha256sums=('7acb8679652701a2504d734e2ba7543ec1a83e310498ddd22fd44bf965eb5518'
+sha256sums=('888b8c39f36ae2035d023d1b14ab0191eb1d26403c3cf4d4d5ede30e66a4942c'
             'SKIP'
             'f126854e9edb57f92325cc6d004072ff1e08136e0c334ed2bb163db5893a8692')
 validpgpkeys=('1528635D8053A57F77D1E08630A59377A7763BE6') # Sam Lantinga <slouken@libsdl.org>