[krb5-auth-dialog] build: Switch to GTK4

[Guido Günther <guidog src gnome org>]

commit c1e27ea33933da9ce4ba62c5f88791d2237b789e
Author: Guido Günther <agx sigxcpu org>
Date:   Mon Oct 17 10:20:59 2022 +0200

    build: Switch to GTK4

 .gitlab-ci.yml | 2 +-
 meson.build    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 477c16e..35d47c2 100755
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -9,7 +9,7 @@ variables:
       intltool
       itstool
       libglib2.0-dev
-      libgtk-3-dev
+      libgtk-4-dev
       libkrb5-dev
       libpam0g-dev
       meson
diff --git a/meson.build b/meson.build
index 0fdfe0f..e880dc8 100644
--- a/meson.build
+++ b/meson.build
@@ -91,7 +91,7 @@ glib_dep = dependency('glib-2.0', version: glib_ver_cmp)
 gio_dep = dependency('gio-2.0', version: glib_ver_cmp)
 gobject_dep = dependency('gobject-2.0', version: glib_ver_cmp)
 gmodule_dep = dependency('gmodule-2.0', version: glib_ver_cmp)
-gtk_dep = dependency('gtk+-3.0', version: '>=3.14')
+gtk_dep = dependency('gtk4', version: '>=4.4')
 
 meson.add_install_script(
   join_paths('build-aux', 'post_install.py'),