[Antithesis] Migrate cluster setup to Kubernetes

What would you like to be added?

After receiving the instructions on how to setup a kubernetes test harness on Antithesis, we should do the following:

• Add a separate setup for Kubernetes in Antithesis directory.
• Confirm that etcd-operator works (i.e. can be used to setup the etcd test cluster).
• Document the instructions how to setup the etcd cluster on Kind.
• Antithesis has local validator for Kubernetes, so we should find a way to integrate with it and then document.

cc @serathius @marcus-hodgson-antithesis

Why is this needed?

Next steps for Antithesis tests.