chore: dependencies update

- update: `core-js` to `^3.1.4`
- update: `babel-eslint` to `^10.0.2`
- update: `@babel/cli` to `^7.5.0`
- update: `@babel/core` to `^7.5.4`
- update: `@babel/plugin-proposal-object-rest-spread` to `^7.5.4`
- update: `@babel/preset-env` to `^7.5.4`
- update: `autoprefixer` to `^9.6.1`
- update: `copyfiles` to `^2.1.1`
- update: `eslint-plugin-compat` to `^3.2.0`
- update: `postcss-cli` to `^6.1.3`
- update: `pug` to `^2.0.4`
- update: `stylelint-order` to `^3.0.1`
- update: `stylelint-scss` to `^3.9.1`

Author: xidedix