[seahorse] Post-release version bump

[Niels De Graef <nielsdg src gnome org>]

commit 364d2c9999b08bb209511daa5175848626af5e83
Author: Niels De Graef <nielsdegraef gmail com>
Date:   Wed Sep 29 11:25:57 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 a037a9a2..3ad8ac51 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('seahorse', ['vala', 'c'],
-  version: '41.0',
+  version: '42.alpha',
   meson_version: '>= 0.51',
   license: 'GPL2+',
 )