fix: Fix JsonNumberHandling for quoted numbers

source/VMelnalksnis.NordigenDotNet/Accounts/AmountInCurrency.cs

@@ -2,6 +2,8 @@
 // Licensed under the Apache License 2.0.
 // See LICENSE file in the project root for full license information.
 
+using System.Text.Json.Serialization;
+
 namespace VMelnalksnis.NordigenDotNet.Accounts;
 
 /// <summary>An amount in a specific currency.</summary>
@@ -11,5 +13,6 @@ public record AmountInCurrency
 	public string Currency { get; set; } = null!;
 
 	/// <summary>Gets or sets the amount.</summary>
+	[JsonNumberHandling(JsonNumberHandling.AllowReadingFromString)]
 	public decimal Amount { get; set; }
 }

source/VMelnalksnis.NordigenDotNet/Institutions/Institution.cs

@@ -22,6 +22,7 @@ public record Institution
 
 	/// <summary>Gets or sets the maximum number of days in the past the service provider will return transactions for.</summary>
 	[JsonPropertyName("transaction_total_days")]
+	[JsonNumberHandling(JsonNumberHandling.AllowReadingFromString)]
 	public int TransactionTotalDays { get; set; }
 
 	/// <summary>Gets or sets all the countries supported by the service provider.</summary>