Issue #3418728: Drush 12 compatibility

Dear reviewers, Please check that the command is now available on Drush 12 and still available on Drush 10/11.

Closes #3418728

src/Drush/Commands/SchedulerCommands.php

 <?php
 
-namespace Drupal\scheduler\Commands;
+namespace Drupal\scheduler\Drush\Commands;
 
+use Drupal\Component\DependencyInjection\ContainerInterface;
 use Drupal\Core\Messenger\MessengerInterface;
 use Drupal\scheduler\SchedulerManager;
 use Drush\Commands\DrushCommands;
@@ -40,6 +41,16 @@ class SchedulerCommands extends DrushCommands {
     $this->messenger = $messenger;
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container): self {
+    return new static(
+      $container->get('scheduler.manager'),
+      $container->get('messenger')
+    );
+  }
+
   /**
    * Lightweight cron to process Scheduler module tasks.
    *