Bump @hapi/joi from 16.1.5 to 16.1.7

Bumps [@hapi/joi](https://github.com/hapijs/joi) from 16.1.5 to 16.1.7.
- [Release notes](https://github.com/hapijs/joi/releases)
- [Changelog](https://github.com/hapijs/joi/blob/master/CHANGELOG.md)
- [Commits](hapijs/joi@v16.1.5...v16.1.7)

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