Fixed php7.3 compatibility

Author: hryvinskyi

Console/Command/CheckExistingAddresses.php

@@ -11,9 +11,16 @@
 
 class CheckExistingAddresses extends Command
 {
-    private CollectionFactory $quoteAddressCollectionFactory;
-    private AddressValidationInterface $addressValidation;
+    /**
+     * @var CollectionFactory 
+     */
+    private $quoteAddressCollectionFactory;
 
+    /**
+     * @var AddressValidationInterface 
+     */
+    private $addressValidation;
+    
     public function __construct(
         CollectionFactory $quoteAddressCollectionFactory,
         AddressValidationInterface $addressValidation