MC-20212: [On premise] Data loss due to core cron job called sales_clean_quotes

- static test fix

Author: Oleksandr Dubovyk

app/code/Magento/Sales/Model/ResourceModel/Collection/ExpiredQuotesCollection.php

@@ -3,7 +3,7 @@
  * Copyright © Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
-namespace Magento\Sales\Helper;
+namespace Magento\Sales\Model\ResourceModel\Collection;
 
 use Magento\Framework\App\Config\ScopeConfigInterface;
 use Magento\Quote\Model\ResourceModel\Quote\Collection;