Bump eslint from 6.2.0 to 6.3.0 (#68)

Bumps [eslint](https://github.com/eslint/eslint) from 6.2.0 to 6.3.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](eslint/eslint@v6.2.0...v6.3.0)

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