Update rest-client requirement from ~> 2.0.2 to >= 2.0.2, < 2.2.0
Update rest-client requirement from ~> 2.0.2 to >= 2.0.2, < 2.2.0

Updates the requirements on [rest-client](https://github.com/rest-client/rest-client) to permit the latest version.
- [Release notes](https://github.com/rest-client/rest-client/releases)
- [Changelog](https://github.com/rest-client/rest-client/blob/master/history.md)
- [Commits](https://github.com/rest-client/rest-client/compare/v2.0.2...v2.1.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
sensu-plugins/sensu-plugins-http