Script Loader: Add missing escaping function to Moment.js string localization.

This changeset avoids breaking the inline script added for `Moment.js` localization if for some reason `get_user_locale()` doesn't return a simply string.

Props swissspidy.
Fixes #61341.



Built from https://develop.svn.wordpress.org/trunk@58288


git-svn-id: http://core.svn.wordpress.org/trunk@57748 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/script-loader.php

@@ -144,7 +144,7 @@ function wp_default_packages_vendor( $scripts ) {
 		'moment',
 		sprintf(
 			"moment.updateLocale( '%s', %s );",
-			get_user_locale(),
+			esc_js( get_user_locale() ),
 			wp_json_encode(
 				array(
 					'months'         => array_values( $wp_locale->month ),

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.6-alpha-58287';
+$wp_version = '6.6-alpha-58288';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.