External Libraries: Update the `polyfill-library` package.

This updates the `wp-polyfill-node-contains` and `'wp-polyfill-dom-rect` scripts to the latest version, `4.8.0`.

These scripts are no longer used by WordPress Core, but are kept up to date as a courtesy.

Props rajinsharwar, hrshahin, oglekler.
Fixes #59077.
Built from https://develop.svn.wordpress.org/trunk@56646


git-svn-id: http://core.svn.wordpress.org/trunk@56158 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/script-loader.php

@@ -113,9 +113,9 @@ function wp_default_packages_vendor( $scripts ) {
 		'lodash'                      => '4.17.19',
 		'wp-polyfill-fetch'           => '3.6.17',
 		'wp-polyfill-formdata'        => '4.0.10',
-		'wp-polyfill-node-contains'   => '4.6.0',
+		'wp-polyfill-node-contains'   => '4.8.0',
 		'wp-polyfill-url'             => '3.6.4',
-		'wp-polyfill-dom-rect'        => '4.6.0',
+		'wp-polyfill-dom-rect'        => '4.8.0',
 		'wp-polyfill-element-closest' => '3.0.2',
 		'wp-polyfill-object-fit'      => '2.3.5',
 		'wp-polyfill-inert'           => '3.1.2',

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.4-alpha-56645';
+$wp_version = '6.4-alpha-56646';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.