ACP2E-3493: Expired persistent quotes are not cleaned up by a cron job sales_clean_quotes

 - Fixed the CR coments.

Author: devarul

app/code/Magento/Persistent/Model/DeleteExpiredQuote.php

@@ -35,10 +35,11 @@ public function __construct(
      * Delete expired persistent quote for the website
      *
      * @param int|null $websiteId
-     * @return $this
-     * @throws NoSuchEntityException|LocalizedException
+     * @return void
+     * @throws LocalizedException
+     * @throws NoSuchEntityException
      */
-    public function deleteExpiredQuote($websiteId = null): static
+    public function deleteExpiredQuote(?int $websiteId): void
     {
         if ($websiteId === null) {
             $websiteId = $this->storeManager->getStore()->getWebsiteId();
@@ -59,7 +60,5 @@ public function deleteExpiredQuote($websiteId = null): static
                 ['store_id in (?)' => $storeIds, 'updated_at < ?' => $expiredBefore, 'is_persistent' => 1]
             );
         }
-
-        return $this;
     }
 }

app/code/Magento/Persistent/Observer/ClearExpiredCronJobObserver.php

@@ -33,7 +33,7 @@ class ClearExpiredCronJobObserver
      *
      * @var DeleteExpiredQuoteFactory
      */
-    private DeleteExpiredQuoteFactory $deleteExpiredQuoteFactory;
+    protected DeleteExpiredQuoteFactory $deleteExpiredQuoteFactory;
 
     /**
      * @param CollectionFactory $websiteCollectionFactory
@@ -67,7 +67,7 @@ public function execute(Schedule $schedule)
         $deleteExpiredQuote = $this->deleteExpiredQuoteFactory->create();
         foreach ($websiteIds as $websiteId) {
             $this->_sessionFactory->create()->deleteExpired($websiteId);
-            $deleteExpiredQuote->deleteExpiredQuote($websiteId);
+            $deleteExpiredQuote->deleteExpiredQuote((int) $websiteId);
         }
 
         return $this;