Twenty Twenty-One: Add a missing HTML comment for Customizer notice control.

This brings consistency with other bundled themes, like Twenty Nineteen.

Props haritpanchal.
Fixes #55725.

Built from https://develop.svn.wordpress.org/trunk@54221


git-svn-id: http://core.svn.wordpress.org/trunk@53780 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-content/themes/twentytwentyone/classes/class-twenty-twenty-one-customize-notice-control.php

@@ -40,7 +40,7 @@ class Twenty_Twenty_One_Customize_Notice_Control extends WP_Customize_Control {
 			<p><a href="<?php echo esc_url( __( 'https://wordpress.org/support/article/twenty-twenty-one/#dark-mode-support', 'twentytwentyone' ) ); ?>">
 				<?php esc_html_e( 'Learn more about Dark Mode.', 'twentytwentyone' ); ?>
 			</a></p>
-		</div>
+		</div><!-- .notice -->
 		<?php
 	}
 }

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.1-alpha-54220';
+$wp_version = '6.1-alpha-54221';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.