[gnome-maps] Post-release version bump

[Marcus Lundblad <mlundblad src gnome org>]

commit f3f7aee4689867ffbc0152cb5040ea475e9e6d4f
Author: Marcus Lundblad <ml update uu se>
Date:   Sat Sep 18 09:11:16 2021 +0200

    Post-release version bump

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index eb14d5c4..611289dd 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('gnome-maps', 'c',
-       version: '41.0',
+       version: '42.alpha',
        license: 'GPL2+'
 )