Out of date eslint plugin causes `Parsing error: Cannot read property 'map' of undefined`

Created by: radiosilence

Describe the bug

I've upgraded my project's TypeScript to version 4. It seems this creates an issue because react-scripts @typescript-eslint/parser is out of date. Could we bump these packages?

Currently I am doing this in my package.json:

  "resolutions": {
    "**/@typescript-eslint/parser": "4.0.1",
    "**/@typescript-eslint/eslint-plugin": "4.0.1"
  },

as a workaround.