Add background job to track historical WooCommerce revenues

[MAILPOET-1857]

tests/integration/Cron/DaemonTest.php

@@ -45,6 +45,7 @@ class DaemonTest extends \MailPoetTest {
       'createExportFilesCleanupWorker' => $this->createSimpleWorkerMock(),
       'createInactiveSubscribersWorker' => $this->createSimpleWorkerMock(),
       'createAuthorizedSendingEmailsCheckWorker' => $this->createSimpleWorkerMock(),
+      'createWooCommerceOrdersWorker' => $this->createSimpleWorkerMock(),
     ]);
   }