chore: deprecate dictionary CreateList for tracker

EasyPost/Services/TrackerService.cs

@@ -69,6 +69,7 @@ public async Task<Tracker> Create(Parameters.Tracker.Create parameters, Cancella
         /// <param name="cancellationToken"><see cref="CancellationToken"/> to use for the HTTP request.</param>
         /// <returns><c>true</c> if successful, <c>false</c> otherwise.</returns>
         [CrudOperations.Create]
+        [Obsolete("This method is deprecated. Please use TrackerService.Create() instead. This method will be removed in a future version.", false)]
         public async Task CreateList(Dictionary<string, object> parameters, CancellationToken cancellationToken = default)
         {
             parameters = parameters.Wrap("trackers");