[sysprof] build: bump GTK/GLib requirements

[Christian Hergert <chergert src gnome org>]

commit 9c58d931dd7e77b91a75693c5f765f59694546d2
Author: Christian Hergert <chergert redhat com>
Date:   Mon Jul 11 13:14:32 2022 -0700

    build: bump GTK/GLib requirements
    
    This was the case anyway, just be explicit about it.

 meson.build | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/meson.build b/meson.build
index 59703943..5e05dc61 100644
--- a/meson.build
+++ b/meson.build
@@ -22,8 +22,8 @@ datadir = get_option('datadir')
 datadir_for_pc_file = join_paths('${prefix}', datadir)
 podir = join_paths(meson.current_source_dir(), 'po')
 
-glib_req_version = '>= 2.68.0'
-gtk_req_version = '>= 4.4'
+glib_req_version = '>= 2.73.0'
+gtk_req_version = '>= 4.6'
 polkit_req_version = '>= 0.105'
 
 cc = meson.get_compiler('c')