Upgrade: Bump @kubernetes/client-node from 0.12.0 to 0.12.2

Bumps [@kubernetes/client-node](https://github.com/kubernetes-client/javascript) from 0.12.0 to 0.12.2.
- [Release notes](https://github.com/kubernetes-client/javascript/releases)
- [Changelog](https://github.com/kubernetes-client/javascript/blob/master/CHANGELOG.md)
- [Commits](kubernetes-client/javascript@0.12.0...0.12.2)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>