libimagequant: update to 2.12.1 (#4238)

mingw-w64-libimagequant/PKGBUILD

@@ -3,7 +3,7 @@
 _realname=libimagequant
 pkgbase=mingw-w64-${_realname}
 pkgname=("${MINGW_PACKAGE_PREFIX}-${_realname}")
-pkgver=2.11.9
+pkgver=2.12.1
 pkgrel=1
 pkgdesc="Palette quantization library (mingw-w64)"
 arch=('any')
@@ -11,7 +11,7 @@ url='https://github.com/ImageOptim/libimagequant'
 license=("GPL3" "MIT")
 source=("${_realname}-${pkgver}.tar.gz"::"https://github.com/ImageOptim/${_realname}/archive/${pkgver}.tar.gz"
         "0001-min-build-fix.patch")
-sha256sums=('e92ad75361e91af5c44aa830bc1da4746f44eaebb6447a51ff832638953fe05e'
+sha256sums=('7035eb281bc9a49cf36db8db807b713d03a0ffe8c5abfbb17a9ea8a038f21d5e'
             '9e8833679949ec2e51d9ccdc7005262898de02ba4a8f5f8463e07501c6878447')
 
 prepare() {