Customize: Correct phpdoc `@return` type for `WP_Customize_Manager::add_dynamic_settings()`.

Fixes regression in [32032], where `WP_Customize_Setting[]` should have been changed to `array` instead of `WP_Customize_Setting`.

See #31888.


git-svn-id: https://develop.svn.wordpress.org/trunk@35534 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/class-wp-customize-manager.php

@@ -1002,7 +1002,7 @@ final class WP_Customize_Manager {
 	 * @since 4.2.0
 	 *
 	 * @param array $setting_ids The setting IDs to add.
-	 * @return WP_Customize_Setting The settings added.
+	 * @return array The WP_Customize_Setting objects added.
 	 */
 	public function add_dynamic_settings( $setting_ids ) {
 		$new_settings = array();