fix(docker) create WORKDIR /app for some version of docker build
fix(docker) create WORKDIR /app for some version of docker build

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