[gcr/main] meson: Change version to 4.0.0

[Corentin Noël <corentinnoel src gnome org>]

commit 998994fdf625e51a6159e6f24540518af56b3abc
Author: Corentin Noël <corentin noel collabora com>
Date:   Mon Apr 4 11:10:58 2022 +0200

    meson: Change version to 4.0.0

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index a930816f..c6d68939 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('gcr', 'c',
-  version: '3.90.0',
+  version: '4.0.0',
   meson_version: '>= 0.52',
   license: 'GPL2+',
 )