[BUG] API update for default-networkpolicy.yaml

[Graeme Colman]

Short issue description

deployment of default-network-policy.yaml fails

Krane version:
OS (Linux/Mac/Windows..):
Kubernetes version:
Kubernetes distribution (e.g. GKE, EKS, ...):

How can we reproduce the issue?

kubectl apply -f /default-network-policy.yaml

WIll fail

Suggestions on how to fix the issue (OPTIONAL)

update api version to networking.k8s.io/v1