[gnome-sudoku] build: Use GNOME module post_install()

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 821866b2f2a607a9cd1a5fa11711620afcfe8d9d
Author: Matt Turner <mattst88 gmail com>
Date:   Sat Sep 3 11:49:08 2022 -0400

    build: Use GNOME module post_install()

 build-aux/post_install.py | 21 ---------------------
 meson.build               |  8 ++++++--
 2 files changed, 6 insertions(+), 23 deletions(-)
---
diff --git a/meson.build b/meson.build
index 5524308..0f7c6ed 100644
--- a/meson.build
+++ b/meson.build
@@ -3,7 +3,7 @@ project('gnome-sudoku', ['c', 'cpp', 'vala'],
     'cpp_std=c++11'
   ],
   license: 'GPL3+',
-  meson_version: '>= 0.50',
+  meson_version: '>= 0.59',
   version: '43.beta'
 )
 application_id = 'org.gnome.Sudoku'
@@ -55,4 +55,8 @@ subdir('lib')
 subdir('po')
 subdir('src')
 
-meson.add_install_script('build-aux/post_install.py')
+gnome.post_install(
+  glib_compile_schemas: true,
+  gtk_update_icon_cache: true,
+  update_desktop_database: true,
+)