feat: Error should accept objects for source

Author: rtablada

src/JsonApiDotNetCore/Internal/Error.cs

@@ -9,17 +9,17 @@ public class Error
     {
         public Error()
         { }
-        
+
         [Obsolete("Use Error constructors with int typed status")]
-        public Error(string status, string title, ErrorMeta meta = null, string source = null)
+        public Error(string status, string title, ErrorMeta meta = null, object source = null)
         {
             Status = status;
             Title = title;
             Meta = meta;
             Source = source;
         }
 
-        public Error(int status, string title, ErrorMeta meta = null, string source = null)
+        public Error(int status, string title, ErrorMeta meta = null, object source = null)
         {
             Status = status.ToString();
             Title = title;
@@ -28,7 +28,7 @@ public Error(int status, string title, ErrorMeta meta = null, string source = nu
         }
 
         [Obsolete("Use Error constructors with int typed status")]
-        public Error(string status, string title, string detail, ErrorMeta meta = null, string source = null)
+        public Error(string status, string title, string detail, ErrorMeta meta = null, object source = null)
         {
             Status = status;
             Title = title;
@@ -37,29 +37,29 @@ public Error(string status, string title, string detail, ErrorMeta meta = null,
             Source = source;
         }
 
-        public Error(int status, string title, string detail, ErrorMeta meta = null, string source = null)
+        public Error(int status, string title, string detail, ErrorMeta meta = null, object source = null)
         {
             Status = status.ToString();
             Title = title;
             Detail = detail;
             Meta = meta;
             Source = source;
         }
-        
+
         [JsonProperty("title")]
         public string Title { get; set; }
 
         [JsonProperty("detail")]
         public string Detail { get; set; }
-        
+
         [JsonProperty("status")]
         public string Status { get; set; }
 
         [JsonIgnore]
         public int StatusCode => int.Parse(Status);
 
         [JsonProperty("source")]
-        public string Source { get; set; }
+        public object Source { get; set; }
 
         [JsonProperty("meta")]
         public ErrorMeta Meta { get; set; }
@@ -73,8 +73,8 @@ public class ErrorMeta
         [JsonProperty("stackTrace")]
         public string[] StackTrace { get; set; }
 
-        public static ErrorMeta FromException(Exception e) 
-            => new ErrorMeta { 
+        public static ErrorMeta FromException(Exception e)
+            => new ErrorMeta {
                 StackTrace = e.Demystify().ToString().Split(new[] { "\n"}, int.MaxValue, StringSplitOptions.RemoveEmptyEntries)
             };
     }