Fix detailed PipelineSchedule model deserialization

NGitLab.Mock/PipelineScheduleCollection.cs

@@ -28,8 +28,6 @@ public override void Add(PipelineSchedule schedule)
             schedule.Id = Server.GetNewPipelineScheduleId();
         }
 
-        // MLL-TODO Check branch?
-
         base.Add(schedule);
     }
 }

NGitLab/Models/PipelineSchedule.cs

@@ -1,27 +1,38 @@
 using System;
 using System.Collections.Generic;
+using System.Text.Json.Serialization;
 
 namespace NGitLab.Models;
 
 public class PipelineSchedule
 {
+    [JsonPropertyName("id")]
     public int Id { get; set; }
 
+    [JsonPropertyName("description")]
     public string Description { get; set; }
 
+    [JsonPropertyName("ref")]
     public string Ref { get; set; }
 
+    [JsonPropertyName("cron")]
     public string Cron { get; set; }
 
+    [JsonPropertyName("next_run_at")]
     public DateTime NextRunAt { get; set; }
 
+    [JsonPropertyName("active")]
     public bool Active { get; set; }
 
+    [JsonPropertyName("created_at")]
     public DateTime CreatedAt { get; set; }
 
+    [JsonPropertyName("updated_at")]
     public DateTime UpdatedAt { get; set; }
 
+    [JsonPropertyName("owner")]
     public User Owner { get; set; }
 
+    [JsonPropertyName("variables")]
     public IEnumerable<PipelineVariable> Variables { get; set; }
 }