Replace `babel-eslint` with `@babel/eslint-parser` in blueprints about rfcs HOT 3 CLOSED

The solution proposed in ember-cli/ember-cli#9556 did seem require an RFC as it was introducing babel.config.js file.

On the other hand, solution proposed in ember-cli/ember-cli#9669 does not require babel.config.js file as it suggests .eslintrc.js would have following part (file trimmed for clarity):

module.exports = {
  root: true,
  parser: '@babel/eslint-parser',
  parserOptions: {
    ecmaVersion: 2018,
    sourceType: 'module',
    requireConfigFile: false,
    babelOptions: {
      plugins: [
        ['@babel/plugin-proposal-decorators', { decoratorsBeforeExport: true }],
      ],
    },
  },
};

I wonder if we go this route, would we really need an RFC as it seem does not change anything as opposed to ember-cli/ember-cli#9556 which has respective comment from @rwjblue.

from rfcs.

It looks like there may be progress on ember-cli/ember-cli#9669. I'll leave this open for now to see where that goes.

from rfcs.

We've landed ember-cli/ember-cli#10142. Thanks for everyone involved and sorry for the delay on this.

from rfcs.