[gtksourceview] Post-release version bump

[Christian Hergert <chergert src gnome org>]

commit f5400900c4c5403f775c9b4883fbe8d0853b9ce5
Author: Christian Hergert <chergert redhat com>
Date:   Sun Jan 9 10:22:59 2022 -0800

    Post-release version bump

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index 1bb5bbe7..872b923d 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('gtksourceview', 'c',
-          version: '5.3.2',
+          version: '5.3.3',
           license: 'LGPL-2.1-or-later',
     meson_version: '>= 0.59.0',
   default_options: [ 'c_std=gnu99',