Bump version to 42.0

Cargo.toml

 [package]
 name = "gnome-tour"
-version = "40.0.0"
+version = "42.0.0"
 authors = ["Bilal Elmoussaoui <bil.elmoussaoui@gmail.com>"]
 edition = "2021"
 

NEWS

+gnome-tour 42.0
+===================
+* Translations updates
+
 gnome-tour 42.beta
 ===================
 * Port to GTK4 / libadwaita

data/org.gnome.Tour.metainfo.xml.in.in

@@ -22,7 +22,7 @@
   <url type="donation">http://www.gnome.org/friends/</url>
   <content_rating type="oars-1.0" />
   <releases>
-    <release version="42.beta" date="2022-02-14" type="development" />
+    <release version="42.0" date="2022-03-19" />
     <release version="40.0" date="2021-03-23" />
     <release version="3.38.0" date="2020-09-15" />
     <release version="3.37.92" date="2020-09-08" type="development" />

meson.build

 project('gnome-tour',
         'rust',
-        version: '42.beta',
+        version: '42.0',
         license: 'GPL-3.0-or-later',
 	meson_version : '>= 0.59')