* chart: Remove support for extensions/v1beta1 and networking.k8s.io/v1beta1
`networking.k8s.io/v1` has been available since v1.19.
As of today, AWS EKS supports v1.19+ and Oracle Cloud supports v1.20+. GKE and AKS supports v1.21+. The upstream Kubernetes project maintains v1.22+.
So it should be safe to remove it now.
* fixup! chart: Remove support for extensions/v1beta1 and networking.k8s.io/v1beta1