[gsettings-desktop-schemas] meson: Bump version requirement

[Carlos Garnacho <carlosg src gnome org>]

commit 8e5765572772a3364231a1298d8b10d7a6b1d369
Author: Robert Mader <robert mader posteo de>
Date:   Mon Jul 22 13:55:18 2019 +0200

    meson: Bump version requirement
    
    To silence the build warning about it.

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index 1c28993..89bcd94 100644
--- a/meson.build
+++ b/meson.build
@@ -5,7 +5,7 @@ project(
     'warning_level=2'
   ],
   license: 'LGPL',
-  meson_version: '>= 0.46.0'
+  meson_version: '>= 0.50.0'
 )
 
 gsettings_desktop_schemas_name = meson.project_name()