Bump validator from 13.5.2 to 13.7.0 in /sample/01-basic

Bumps [validator](https://github.com/validatorjs/validator.js) from 13.5.2 to 13.7.0.
- [Release notes](https://github.com/validatorjs/validator.js/releases)
- [Changelog](https://github.com/validatorjs/validator.js/blob/master/CHANGELOG.md)
- [Commits](validatorjs/validator.js@13.5.2...13.7.0)

---
updated-dependencies:
- dependency-name: validator
  dependency-type: indirect
...

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Author: dependabot[bot]