Docs: Correct type for the `$data` parameter of `WP_Theme::cache_add()`.

Props itowhid06.
Fixes #48096.
Built from https://develop.svn.wordpress.org/trunk@46226


git-svn-id: http://core.svn.wordpress.org/trunk@46038 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-wp-theme.php

@@ -678,7 +678,7 @@ final class WP_Theme implements ArrayAccess {
 	 * @since 3.4.0
 	 *
 	 * @param string $key Type of data to store (theme, screenshot, headers, post_templates)
-	 * @param string $data Data to store
+	 * @param array|string $data Data to store
 	 * @return bool Return value from wp_cache_add()
 	 */
 	private function cache_add( $key, $data ) {

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.3-alpha-46225';
+$wp_version = '5.3-alpha-46226';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.