Bump eslint-config-prettier from 6.5.0 to 6.6.0

Bumps [eslint-config-prettier](https://github.com/prettier/eslint-config-prettier) from 6.5.0 to 6.6.0.
- [Release notes](https://github.com/prettier/eslint-config-prettier/releases)
- [Changelog](https://github.com/prettier/eslint-config-prettier/blob/master/CHANGELOG.md)
- [Commits](prettier/eslint-config-prettier@v6.5.0...v6.6.0)

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