Bumps `kotest` from 5.6.2 to 5.9.1.

Updates `io.kotest:kotest-assertions-core` from 5.6.2 to 5.9.1
- [Release notes](https://github.com/kotest/kotest/releases)
- [Commits](kotest/kotest@v5.6.2...v5.9.1)

Updates `io.kotest:kotest-runner-junit5` from 5.6.2 to 5.9.1
- [Release notes](https://github.com/kotest/kotest/releases)
- [Commits](kotest/kotest@v5.6.2...v5.9.1)

Updates `io.kotest:kotest-property` from 5.6.2 to 5.9.1
- [Release notes](https://github.com/kotest/kotest/releases)
- [Commits](kotest/kotest@v5.6.2...v5.9.1)

Updates `io.kotest:kotest-assertions-json` from 5.6.2 to 5.9.1
- [Release notes](https://github.com/kotest/kotest/releases)
- [Commits](kotest/kotest@v5.6.2...v5.9.1)

Updates `io.kotest:kotest-extensions` from 5.6.2 to 5.9.1
- [Release notes](https://github.com/kotest/kotest/releases)
- [Commits](kotest/kotest@v5.6.2...v5.9.1)

---
updated-dependencies:
- dependency-name: io.kotest:kotest-assertions-core
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.kotest:kotest-runner-junit5
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.kotest:kotest-property
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.kotest:kotest-assertions-json
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.kotest:kotest-extensions
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>