Upgrade uglify-es to version 3.0.28.
Upgrade uglify-es to version 3.0.28.

Same bump as done in https://github.com/meteor/meteor/commit/87181a68e853f142fc6f04d321d6cfa7a8140543 but for `uglify-es` instead of `uglify-js`, the switch made by meteor/meteor#8698.
Hansoft/meteor,Hansoft/meteor,Hansoft/meteor,Hansoft/meteor,Hansoft/meteor,Hansoft/meteor,Hansoft/meteor