Bump eslint from 4.19.1 to 5.16.0

Bumps [eslint](https://github.com/eslint/eslint) from 4.19.1 to 5.16.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](eslint/eslint@v4.19.1...v5.16.0)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot-support