应用: 快手
任务: 启动快手，选择一个已收藏的视频，取消它的收藏状态
操作步骤:
step_id: 0
action: CLICK
step_id: 1
action: CLICK
step_id: 2
action: CLICK
step_id: 3
action: CLICK
step_id: 4
action: CLICK