[gedit] Bump API version

[Sébastien Wilmet <swilmet src gnome org>]

commit b9c2db74fa7077e367b5365483865c38f4f44d75
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Tue Mar 17 13:24:10 2020 +0100

    Bump API version
    
    There has been an API break because of the lockdown support removal.

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index 9395e124e..8fc51d935 100644
--- a/meson.build
+++ b/meson.build
@@ -13,7 +13,7 @@ i18n = import('i18n')
 pkg = import('pkgconfig')
 python = import('python')
 
-api_version = '3.36'
+api_version = '3.38'
 
 package_string = '@0@-@1@'.format(meson.project_name(), api_version)