[gnome-maps] Update version for 40.alpha development

[Marcus Lundblad <mlundblad src gnome org>]

commit afbe92d91fa2b25f43405f1a6dfe58bcfde0b929
Author: Marcus Lundblad <ml update uu se>
Date:   Wed Sep 16 22:34:20 2020 +0200

    Update version for 40.alpha development

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index bc37e9e6..daa66f0f 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('gnome-maps', 'c',
-       version: '3.38.0',
+       version: '40.alpha',
        license: 'GPL2+'
 )