ENGCOM-5748: Resolve Vat ID not being included in Shipping Address issue24402 #24403

 - Merge Pull Request #24403 from edenduong/magento2:2.3-bugfix/vat_id_shippng_issue24402
 - Merged commits:
   1. 0f38f03

Author: magento-engcom-team

app/code/Magento/Customer/Model/Address/CustomerAddressDataFormatter.php

@@ -81,6 +81,7 @@ public function prepareAddress(AddressInterface $customerAddress)
             'inline' => $this->getCustomerAddressInline($customerAddress),
             'custom_attributes' => [],
             'extension_attributes' => $customerAddress->getExtensionAttributes(),
+            'vat_id' => $customerAddress->getVatId()
         ];
 
         if ($customerAddress->getCustomAttributes()) {