build(deps-dev): bump eslint-loader from 2.1.0 to 4.0.2

Bumps [eslint-loader](https://github.com/webpack-contrib/eslint-loader) from 2.1.0 to 4.0.2.
- [Release notes](https://github.com/webpack-contrib/eslint-loader/releases)
- [Changelog](https://github.com/webpack-contrib/eslint-loader/blob/master/CHANGELOG.md)
- [Commits](webpack-contrib/eslint-loader@2.1.0...v4.0.2)

---
updated-dependencies:
- dependency-name: eslint-loader
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>