fix(weapp): ping es6-promise at 4.2.3 to fix a wepy compile error
fix(weapp): ping es6-promise at 4.2.3 to fix a wepy compile error

leancloud/javascript-sdk,leeyeh/javascript-sdk,leeyeh/javascript-sdk,leancloud/javascript-sdk,leancloud/javascript-sdk,leeyeh/javascript-sdk