ACP2E-4115: Address issues raised in ACP2E-4031

Author: aplapana

lib/internal/Magento/Framework/GraphQl/Test/Unit/Query/OrderResponseFormatterTest.php renamed to app/code/Magento/QuoteGraphQl/Test/Unit/Model/OrderResponseFormatterTest.php

@@ -5,7 +5,7 @@
  */
 declare(strict_types=1);
 
-namespace Magento\Framework\GraphQl\Test\Unit\Query;
+namespace Magento\QuoteGraphQl\Test\Unit\Model;
 
 use Magento\QuoteGraphQl\Model\OrderResponseFormatter;
 use PHPUnit\Framework\TestCase;

app/code/Magento/QuoteGraphQl/etc/schema.graphqls

@@ -262,7 +262,7 @@ type ApplyCouponToCartOutput @doc(description: "Contains details about the cart
 type PlaceOrderOutput @doc(description: "Contains the results of the request to place an order.") {
     order: Order @deprecated(reason: "Use `orderV2` instead.") @doc(description: "The ID of the order.")
     orderV2: CustomerOrder @doc(description: "Full order information.")
-    errors: [PlaceOrderError!]! @doc(description:"An array of place order errors.") @deprecated(reason: "Errors node automatically added to response when an error occurs.")
+    errors: [PlaceOrderError!]! @doc(description:"An array of place order errors.")
 }
 
 type PlaceOrderError @doc(description:"An error encountered while placing an order."){