kde-gtk-config5: update to 5.15.4

[ci skip]

srcpkgs/kde-gtk-config5/template

@@ -1,6 +1,6 @@
 # Template file for 'kde-gtk-config5'
 pkgname=kde-gtk-config5
-version=5.15.3
+version=5.15.4
 revision=1
 wrksrc="${pkgname%5}-${version}"
 build_style=cmake
@@ -14,7 +14,7 @@ maintainer="John <johnz@posteo.net>"
 license="GPL-2.0-or-later, LGPL-2.1-or-later"
 homepage="https://projects.kde.org/projects/plasma/kde-gtk-config"
 distfiles="${KDE_SITE}/plasma/${version}/${pkgname%5}-${version}.tar.xz"
-checksum=488f678d65352f74b96149371f49098be8f22adbdbceb9d2699e8beeb4115cfb
+checksum=3689328ddd1e30313f3ad1df02e9c52b29d88b5a3dd42c4507bbc9e58286059a
 
 if [ "$CROSS_BUILD" ]; then
 	hostmakedepends+=" kcoreaddons"