Twenty Twenty-Three: Add style-variations tag in style.css.

The `style-variations` tag was recently added on the Theme repository. As Twenty Twenty-Three proposes several Style variations, let's add a `style-variations` tag to the header of its stylesheet.

Props kafleg, SergeyBiryukov, mukesh27.
Fixes #58110.
See meta#6545.

Built from https://develop.svn.wordpress.org/trunk@55643


git-svn-id: http://core.svn.wordpress.org/trunk@55155 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-content/themes/twentytwentythree/style.css

@@ -11,5 +11,5 @@ Version: 1.1
 License: GNU General Public License v2 or later
 License URI: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 Text Domain: twentytwentythree
-Tags: one-column, custom-colors, custom-menu, custom-logo, editor-style, featured-images, full-site-editing, block-patterns, rtl-language-support, sticky-post, threaded-comments, translation-ready, wide-blocks, block-styles, accessibility-ready, blog, portfolio, news
+Tags: one-column, custom-colors, custom-menu, custom-logo, editor-style, featured-images, full-site-editing, block-patterns, rtl-language-support, sticky-post, threaded-comments, translation-ready, wide-blocks, block-styles, style-variations, accessibility-ready, blog, portfolio, news
 */

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.3-alpha-55642';
+$wp_version = '6.3-alpha-55643';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.