[epiphany/gnome-40] Bump minimum GLib dep to 2.68

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 198c47f46e27978434f1b54d890680f2b45a6da2
Author: Michael Catanzaro <mcatanzaro redhat com>
Date:   Tue Feb 8 14:40:23 2022 -0600

    Bump minimum GLib dep to 2.68
    
    This is required for g_string_replace().

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index c9d16d29f..1f7f16eb2 100644
--- a/meson.build
+++ b/meson.build
@@ -72,7 +72,7 @@ gsb_api_key = get_option('gsb_api_key')
 conf.set_quoted('GSB_API_KEY', gsb_api_key)
 conf.set10('ENABLE_GSB', gsb_api_key != '')
 
-glib_requirement = '>= 2.64.0'
+glib_requirement = '>= 2.68.0'
 gtk_requirement = '>= 3.24.0'
 nettle_requirement = '>= 3.4'
 webkitgtk_requirement = '>= 2.31.1'