FR: tailscale Kubernetes operator doesn't support headless service

### What are you trying to do?

Regular ClusterIP services are supported, however, headless services are not supported such that no tailscale proxies are created after a new headless service is created with tailscale annotations on it.

Headless service is defined as a ClusterIP service with `clusterIP` attribute set to `None`. See https://spacelift.io/blog/kubernetes-service for more details.

### How should we solve this?

Support headless service in tailscale operator

### What is the impact of not solving this?

The impact for me, is that I cannot enable thanos service since by default it creates a headless service (see https://github.com/bitnami/charts/blob/main/bitnami/kube-prometheus/values.yaml#L1557)

### Anything else?

_No response_