Changes to List Experiments Paginated

added the new 19.00 enum value to the experiments/items/task_type response property for the response status 200

removed the 12.00 enum value from the experiments/items/task_type response property for the response status 200

removed the 7.00 enum value from the experiments/items/task_type response property for the response status 200

removed the 9.00 enum value from the experiments/items/task_type response property for the response status 200

the endpoint scheme security ClassicAPIKeyHeader was added to the API