fix(docker) clean after onbuild
fix(docker) clean after onbuild

wechaty/wechaty,lijiarui/wechaty,wechaty/wechaty,mukaiu/wechaty,binsee/wechaty,mukaiu/wechaty,zixia/wechaty,Chatie/wechaty,zixia/wechaty,Chatie/wechaty,binsee/wechaty,wechaty/wechaty,Chatie/wechaty,mukaiu/wechaty,binsee/wechaty,lijiarui/wechaty