Add HA control planes support for VKE

[optik-aper]

Description

Adds support for the ha_controlplanes field that was added to the API. Setting this true will deploy the cluster with highly available control planes.

Related Issues

Checklist:

• [x] Have you checked to ensure there aren't other open Pull Requests for the same update/change?
• [x] Have you linted your code locally prior to submission?
• [x] Have you successfully ran tests with your changes locally?