Add support for K8s version v1.26.x

[steve-fraser]

Describe the solution you'd like [A clear and concise description of what you want to happen.]

I would like to use k8s version 1.26.x with BOYH

Anything else you would like to add: [Miscellaneous information that will assist in implementing the feature.]

Environment:

• Cluster-api-provider-bringyourownhost version:
• Kubernetes version: (use kubectl version --short):
• OS (e.g. from /etc/os-release):

[oingooing]

i want too!