[gnome-control-center] Post-release version bump (40.rc)

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 49aaa156ab49b1ab23664808d83231d1373dd2d8
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Sun Feb 21 13:33:58 2021 -0300

    Post-release version bump (40.rc)

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index bb8af87b4..e8333c0da 100644
--- a/meson.build
+++ b/meson.build
@@ -1,6 +1,6 @@
 project(
   'gnome-control-center', 'c',
-        version : '40.beta',
+        version : '40.rc',
         license : 'GPL2+',
   meson_version : '>= 0.53.0'
 )