Bump riptide.version from 2.8.1 to 2.9.0
Bump riptide.version from 2.8.1 to 2.9.0

Bumps `riptide.version` from 2.8.1 to 2.9.0.

Updates `riptide-core` from 2.8.1 to 2.9.0
- [Release notes](https://github.com/zalando/riptide/releases)
- [Commits](https://github.com/zalando/riptide/compare/2.8.1...2.9.0)

Updates `riptide-capture` from 2.8.1 to 2.9.0
- [Release notes](https://github.com/zalando/riptide/releases)
- [Commits](https://github.com/zalando/riptide/compare/2.8.1...2.9.0)

Updates `riptide-httpclient` from 2.8.1 to 2.9.0
- [Release notes](https://github.com/zalando/riptide/releases)
- [Commits](https://github.com/zalando/riptide/compare/2.8.1...2.9.0)

Updates `riptide-stream` from 2.8.1 to 2.9.0
- [Release notes](https://github.com/zalando/riptide/releases)
- [Commits](https://github.com/zalando/riptide/compare/2.8.1...2.9.0)

Updates `riptide-spring-boot-starter` from 2.8.1 to 2.9.0
- [Release notes](https://github.com/zalando/riptide/releases)
- [Commits](https://github.com/zalando/riptide/compare/2.8.1...2.9.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
whiskeysierra/compass,whiskeysierra/compass