[gexiv2] Bump project version

[Jens Georg <jensgeorg src gnome org>]

commit 1a178152108212d755af9258e216a92f861b3cd6
Author: Jens Georg <mail jensge org>
Date:   Sun Jun 20 13:39:30 2021 +0200

    Bump project version

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index 28f8ad5..8a79ba4 100644
--- a/meson.build
+++ b/meson.build
@@ -1,7 +1,7 @@
 project(
     'gexiv2',
     ['c', 'cpp'],
-    version : '0.12.2',
+    version : '0.13.0',
     meson_version : '>=0.48',
     default_options : [
         'cpp_std=c++11'