[xdg-desktop-portal-gnome] Bump release version

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

commit 98d84ca2756a791b2c04abc3f08e58994a064497
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Fri Mar 18 12:42:59 2022 -0300

    Bump release version
    
    I should have done that after the RC release :(

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index 4023b93..a141014 100644
--- a/meson.build
+++ b/meson.build
@@ -1,7 +1,7 @@
 project(
   'xdg-desktop-portal-gnome',
   'c',
-  version: '42.rc',
+  version: '42.0',
   meson_version: '>= 0.53.0',
   license: 'LGPLv2.1+'
 )