Issue #3255320: ReadinessCheckEvent should have CronUpdater instance if cron updates are enabled

src/Form/UpdaterForm.php

@@ -265,8 +265,10 @@ class UpdaterForm extends FormBase {
    * Gets readiness error validation results.
    *
    * @param string $update_version
+   *   The version to update to.
    *
    * @return \Drupal\package_manager\ValidationResult[]
+   *   The error validation results.
    */
   private function getReadinessErrors(string $update_version) {
     $event = new ReadinessCheckEvent($this->updater, ['drupal' => $update_version]);