Invalid config for later kubernetes versions

[Thomas Kerin]

I was playing with this using latest minikube which uses kubernetes 1.22

While doing helm install ph-med . in helm/payment-hub-med yielded errors like this issue: kubernetes/kubernetes#90077

It seems in later kubernetes versions this support has moved to networking.k8s.io/v1, along with changes to the configuration format.

I downgraded to kubernetes 1.18 and the helm install step worked.