Bump eslint from 5.6.0 to 5.6.1

Bumps [eslint](https://github.com/eslint/eslint) from 5.6.0 to 5.6.1.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](https://github.com/eslint/eslint/compare/v5.6.0...v5.6.1

)

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