Bump k8s from 0.23.0 to 0.23.3 (#71)

Bumps [k8s](https://github.com/fiaas/k8s) from 0.23.0 to 0.23.3.
- [Release notes](https://github.com/fiaas/k8s/releases)
- [Commits](fiaas/k8s@v0.23.0...v0.23.3)

---
updated-dependencies:
- dependency-name: k8s
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>