[gnome-software/gnome-40] trivial: Post release version bump

[Phaedrus Leeds <mwleeds src gnome org>]

commit aa84c3c3d6d9cbb57e8ba238f87c35eae38f79f9
Author: Phaedrus Leeds <mwleeds protonmail com>
Date:   Fri Jul 9 17:23:46 2021 -0700

    trivial: Post release version bump

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index f2fe58d18..ece911af7 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('gnome-software', 'c',
-  version : '40.3',
+  version : '40.4',
   license : 'GPL-2.0+',
   default_options : ['warning_level=1', 'c_std=c11'],
   meson_version : '>=0.47.0'