Fix int nullables

Author: armando-rodriguez-cko

src/CheckoutSdk/Payments/Contexts/PaymentContextsItems.cs

@@ -5,17 +5,17 @@ public class PaymentContextsItems
         public PaymentContextItemType? Type { get; set; }
         public string Name { get; set; }
 
-        public int Quantity { get; set; }
+        public int? Quantity { get; set; }
 
-        public int UnitPrice { get; set; }
+        public int? UnitPrice { get; set; }
 
         public string Reference { get; set; }
 
-        public int TotalAmount { get; set; }
+        public int? TotalAmount { get; set; }
 
-        public int TaxAmount { get; set; }
+        public int? TaxAmount { get; set; }
 
-        public int DiscountAmount { get; set; }
+        public int? DiscountAmount { get; set; }
 
         public string Url { get; set; }
 

src/CheckoutSdk/Payments/ShippingDetails.cs

@@ -22,6 +22,6 @@ public class ShippingDetails
 
         public PaymentContextsShippingMethod? Method { get; set; }
 
-        public int Delay { get; set; }
+        public int? Delay { get; set; }
     }
 }

src/CheckoutSdk/Reconciliation/Previous/ReconciliationQueryPaymentsFilter.cs

@@ -4,7 +4,7 @@ namespace Checkout.Reconciliation.Previous
 {
     public class ReconciliationQueryPaymentsFilter
     {
-        public int Limit { get; set; } = 500;
+        public int? Limit { get; set; } = 500;
 
         public string Reference { get; set; }