[xdg-desktop-portal-gnome] Post-branching version bump

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

commit d7f4823b49b0d00fb964a2ae79fa7512bee26c9d
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Fri Mar 18 15:33:48 2022 -0300

    Post-branching version bump

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index 6514816..668ac77 100644
--- a/meson.build
+++ b/meson.build
@@ -1,7 +1,7 @@
 project(
   'xdg-desktop-portal-gnome',
   'c',
-  version: '42.1',
+  version: '43.alpha',
   meson_version: '>= 0.53.0',
   license: 'LGPLv2.1+'
 )