Update version numbers for Seedlet themes

varia/package.json

@@ -1,6 +1,6 @@
 {
   "name": "varia",
-  "version": "1.6.3",
+  "version": "1.6.4",
   "description": "A variable-based design system for WordPress sites built with Gutenberg.",
   "bugs": {
     "url": "https://github.com/Automattic/themes/issues?q=is%3Aopen+is%3Aissue+label%3Avaria"

varia/style.scss

@@ -5,7 +5,7 @@ Author: Automattic
 Author URI: https://automattic.com/
 Description: A variable-based design system for WordPress sites built with Gutenberg.
 Requires at least: WordPress 4.9.6
-Version: 1.6.3
+Version: 1.6.4
 License: GNU General Public License v2 or later
 License URI: LICENSE
 Text Domain: varia