gtk3: Update to 3.20.3

mingw-w64-gtk3/PKGBUILD

@@ -3,7 +3,7 @@
 _realname=gtk3
 pkgbase=mingw-w64-${_realname}
 pkgname="${MINGW_PACKAGE_PREFIX}-${_realname}"
-pkgver=3.20.2
+pkgver=3.20.3
 pkgrel=1
 pkgdesc="GObject-based multi-platform GUI toolkit (v3) (mingw-w64)"
 arch=('any')
@@ -29,7 +29,7 @@ depends=("${MINGW_PACKAGE_PREFIX}-gcc-libs"
          "${MINGW_PACKAGE_PREFIX}-shared-mime-info")
 options=('strip' '!debug' 'staticlibs')
 source=("https://download.gnome.org/sources/gtk+/${pkgver%.*}/gtk+-${pkgver}.tar.xz")
-sha256sums=('1ab1d1068ea55e0046f437d69983f164df5e68cb2e9fdfb38787b867f33f69f7')
+sha256sums=('3834f3bf23b260b3e5ebfea41102e2026a8af29e36c3620edf4a5cf05e82f694')
 
 prepare() {
   cd "${srcdir}/gtk+-${pkgver}"