avoid deserializing an empty date string

Author: retailcoder

rubberduckvba.Server/Model/HangfireJobState.cs

@@ -5,7 +5,7 @@ public record class HangfireJobState
     public string JobName { get; set; } = default!;
     public DateTime CreatedAt { get; set; }
     public int? LastJobId { get; set; }
-    public DateTime? NextExecution { get; set; }
+    public string? NextExecution { get; set; }
     public string? StateName { get; set; }
-    public DateTime? StateTimestamp { get; set; }
+    public string? StateTimestamp { get; set; }
 }