Bump eslint-plugin-node from 6.0.1 to 8.0.0

Bumps [eslint-plugin-node](https://github.com/mysticatea/eslint-plugin-node) from 6.0.1 to 8.0.0.
- [Release notes](https://github.com/mysticatea/eslint-plugin-node/releases)
- [Commits](https://github.com/mysticatea/eslint-plugin-node/compare/v6.0.1...v8.0.0

)

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