File fix_cmake.patch of Package applet-window-buttons6

diff --git a/CMakeLists.txt b/CMakeLists.txt
index fd502c9..a9357dd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,7 +3,7 @@
 cmake_minimum_required(VERSION 3.20 FATAL_ERROR)
 project(applet_windowbuttons)
 
-set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_CXX_STANDARD 20)
 set(VERSION 0.12.0)
 set(AUTHOR "Michail Vourlakos")
 set(EMAIL "mvourlakos@gmail.com")