Networks and Sites: Exit after `wp_redirect()` in `wp-admin/ms-options.php`.

This brings more consistency with the other files having the same pattern:

* `wp-admin/moderation.php`
* `wp-admin/ms-admin.php`
* `wp-admin/ms-edit.php`
* `wp-admin/ms-sites.php`
* `wp-admin/ms-themes.php`
* `wp-admin/ms-upgrade-network.php`
* `wp-admin/ms-users.php`

Follow-up to [15481], [16847].

Props jigar-bhanushali, jorbin, johnbillion, Presskopp, rajinsharwar, audrasjb, SergeyBiryukov.
Fixes #60926.
Built from https://develop.svn.wordpress.org/trunk@58460


git-svn-id: http://core.svn.wordpress.org/trunk@57909 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/ms-options.php

@@ -10,3 +10,4 @@
 require_once __DIR__ . '/admin.php';
 
 wp_redirect( network_admin_url( 'settings.php' ) );
+exit;

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.6-beta3-58459';
+$wp_version = '6.6-beta3-58460';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.