Kubernetes compatibility

[paulfantom]

What is missing?

We should lock tobs compatibility in helm chart by using kubeVersion parameter.

At the same time, we should update the current compatibility and add k8s 1.24 to the mix.

Why do we need it?

To keep up with our users infrastructure.

Anything else we need to know?:

[paulfantom]

Also this paragraph needs to be updated - https://github.com/timescale/tobs#compatibility-matrix

[paulfantom]

Related - prometheus-operator/kube-prometheus#1768