应用: 抖音
任务: 打开抖音，查看首页第五个视频，然后关注这位创作者
操作步骤:
step_id: 0
action: CLICK
step_id: 1
action: SWIPE
step_id: 2
action: SWIPE
step_id: 3
action: SWIPE
step_id: 4
action: SWIPE
step_id: 5
action: SWIPE