lxqt-config: update to 2.3.0.

srcpkgs/lxqt-config/patches/cxx20.patch

@@ -0,0 +1,13 @@
+--- a/CMakeLists.txt	2025-11-07 21:11:33.948240767 +0100
++++ b/CMakeLists.txt	2025-11-07 21:12:00.726242314 +0100
+@@ -25,6 +25,9 @@
+ set(CMAKE_AUTOUIC ON)
+ set(CMAKE_AUTORCC ON)
+
++ 
++add_compile_options(-std=c++20)
++
+ set(KF6_MINIMUM_VERSION "6.0.0")
+ set(KF6SCREEN_MINIMUM_VERSION "6.0.0")
+ set(LXQT_MINIMUM_VERSION "2.3.0")
+

srcpkgs/lxqt-config/template

@@ -1,6 +1,6 @@
 # Template file for 'lxqt-config'
 pkgname=lxqt-config
-version=2.2.0
+version=2.3.0
 revision=1
 build_style=cmake
 configure_args="-DCMAKE_CXX_STANDARD=17"
@@ -14,4 +14,4 @@ maintainer="Helmut Pozimski <helmut@pozimski.eu>"
 license="LGPL-2.1-or-later"
 homepage="https://lxqt-project.org"
 distfiles="https://github.com/lxqt/lxqt-config/archive/${version}.tar.gz"
-checksum=28f9755fdb0254e286771b0bebc78bd6b74502f3a57fb07a5a11173ba8617e1c
+checksum=7c8f4399eb902b7dd09ccfba6e05ffdea7512839b193371a22b1c73732b5b13b