build(deps-dev): update public_suffix requirement from ~> 2.0, < 3.0 to ~> 4.0, < 5.0
build(deps-dev): update public_suffix requirement from ~> 2.0, < 3.0 to ~> 4.0, < 5.0

Updates the requirements on [public_suffix](https://github.com/weppos/publicsuffix-ruby) to permit the latest version.
- [Release notes](https://github.com/weppos/publicsuffix-ruby/releases)
- [Changelog](https://github.com/weppos/publicsuffix-ruby/blob/master/CHANGELOG.md)
- [Commits](https://github.com/weppos/publicsuffix-ruby/compare/v2.0.0...v4.0.6)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
nick-desteffen/airbrake,airbrake/airbrake,nick-desteffen/airbrake,airbrake/airbrake