[gnome-text-editor] build: require GTK 4.6

[Christian Hergert <chergert src gnome org>]

commit 5eb68ca8e4c8f1750629b577d55b56e3be5f655f
Author: Christian Hergert <chergert redhat com>
Date:   Tue Feb 22 15:07:47 2022 -0800

    build: require GTK 4.6
    
    Now that it is released, ensure we have GTK 4.6 instead of a development
    release we aren't sure has what we need.

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index e0d3c8c..265f417 100644
--- a/meson.build
+++ b/meson.build
@@ -17,7 +17,7 @@ endif
 
 # Check dependencies
 glib_req_version = '2.69'
-gtk_req_version = '4.5'
+gtk_req_version = '4.6'
 gtksourceview_req_version = '5.3.1'
 enchant_req_version = '2.2.0'