ACP2E-1001: Customer Zip Code input validation rule not working

- Fixing build failures.

Author: Mohan Ahuja

app/code/Magento/Customer/Controller/Adminhtml/Address/Validate.php

@@ -116,9 +116,7 @@ private function validateCustomerAddress(DataObject $response): DataObject
         if ($errors !== true) {
             $messages = $response->hasMessages() ? $response->getMessages() : [];
             foreach ($errors as $error) {
-                foreach ($error as $message) {
-                    $messages[] = $message;
-                }
+                $messages[] = $error;
             }
             $response->setMessages($messages);
             $response->setError(true);

app/code/Magento/Customer/Model/Metadata/Form.php

@@ -365,7 +365,7 @@ public function validateData(array $data)
         if (!$validator->isValid(false)) {
             $messages = [];
             foreach ($validator->getMessages() as $errorMessages) {
-                $messages[] = (array)$errorMessages;
+                $messages = array_merge($messages, array_values((array)$errorMessages));
             }
             return $messages;
         }