Add support for Ingress in K8S versions >=1.22

[jordi-t]

As of Kubernetes v1.22, the extensions/v1beta1 and networking.k8s.io/v1beta1 API versions of Ingress is no longer served.

This means that the current Ingress template for both O-Z and O-N will not work on K8S versions >=1.22.

Currently extensions/v1beta1 is still supported (required for K8S versions <=1.14), my suggestion would be to drop support for this and only support networking.k8s.io/v1beta1 and networking.k8s.io/v1.

[shazada]

We have the same issue on our Azure AKS cluster, which doesn't support the deprecated ingress.
We'll make a PR in https://github.com/Contezza/open-zaak-charts once its running on our server.