Update chai-http requirement from 4.2.0 to 4.2.1 (#3856)

Updates the requirements on [chai-http](https://github.com/chaijs/chai-http) to permit the latest version.
- [Release notes](https://github.com/chaijs/chai-http/releases)
- [Changelog](https://github.com/chaijs/chai-http/blob/master/History.md)
- [Commits](https://github.com/chaijs/chai-http/commits/4.2.1

)

Signed-off-by: dependabot[bot] <support@dependabot.com>