Version

3.0.0-beta.6

Reproduction link

not-required

Steps to reproduce

Create a new Vue app activating ESLint.

What is expected?

Vue CLI should create a .eslintrc.json or .eslint.js file, due .eslintrc file is deprecated according to the ESLint documentation: https://eslint.org/docs/user-guide/configuring#configuration-file-formats

What is actually happening?

Vue CLI creates a .eslintrc file

Maybe the option to create a .eslintrc.js file will be better to place comments and solve conditional rules according to the NODE_ENV value