Make a note of required versions for dependencies on test-network

[jmcshane]

Small issue I just ran into, the sample-network scripts use https://github.com/kubernetes/kubernetes/pull/105776 so kubectl must be at least v1.23.

error: unrecognized condition: "jsonpath={.status.type}=Deployed"

I was able to get past this by upgrading my kube-cli, but wanted to highlight that specific dependency versions here would be helpful.