Bump cdk8s from 2.68.0 to 2.69.0

Bumps [cdk8s](https://github.com/cdk8s-team/cdk8s-core) from 2.68.0 to 2.69.0.
- [Release notes](https://github.com/cdk8s-team/cdk8s-core/releases)
- [Commits](cdk8s-team/cdk8s-core@v2.68.0...v2.69.0)

---
updated-dependencies:
- dependency-name: cdk8s
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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