Changes to Update the trail percentage of an active trailing stop

the response property trailingStop/callback_rate became nullable for the status 200

the response property trailingStop/hl_order_id became nullable for the status 200

the response property trailingStop/triggered_at became nullable for the status 200

the response property trailingStop/triggered_price became nullable for the status 200

response property trailingStop/callback_rate list-of-types was narrowed by removing types null from media type application/json of response 200

response property trailingStop/hl_order_id list-of-types was narrowed by removing types null from media type application/json of response 200

response property trailingStop/triggered_at list-of-types was narrowed by removing types null from media type application/json of response 200

response property trailingStop/triggered_price list-of-types was narrowed by removing types null from media type application/json of response 200