add new pasargad callback result status

[ahmadrezadev]

وقتی کاربر دکمه انصراف رو در درگاه میزنه، این وضعیت دیده نشده بود

[ahmadrezadev]

System.ArgumentException: Requested value 'cancel' was not found. at System.Enum.TryParseByName[TStorage](RuntimeType enumType, ReadOnlySpan1 value, Boolean ignoreCase, Boolean throwOnFailure, TStorage& result) at System.Enum.TryParseByValueOrName[TUnderlying,TStorage](RuntimeType enumType, ReadOnlySpan1 value, Boolean ignoreCase, Boolean throwOnFailure, TUnderlying& result) at System.Enum.TryParse(Type enumType, ReadOnlySpan1 value, Boolean ignoreCase, Boolean throwOnFailure, Object& result) at Parbad.Gateway.Pasargad.Internal.PasargadHelper.BindCallbackResultModel(HttpRequest httpRequest, CancellationToken cancellationToken) at Parbad.Gateway.Pasargad.PasargadGateway.FetchAsync(InvoiceContext context, CancellationToken cancellationToken) at Parbad.Internal.DefaultOnlinePayment.FetchAsync(Payment payment, CancellationToken cancellationToken) at Parbad.Internal.DefaultOnlinePayment.FetchAsync(CancellationToken cancellationToken)