Andrew Su

Use `kube-codegen.sh` instead of `generate-groups.sh` when moving to k8s.io api `0.28+`

1

As of `k8s.io/[email protected]`, the script `generate-groups.sh` is [deprecated](https://github.com/kubernetes/code-generator/blob/791c213a776b4b92f9af0805c1cf57c118ba951c/generate-groups.sh#L52-L53) and we should move to using [`kube-codegen.sh`](https://github.com/kubernetes/code-generator/blob/v0.28.0/kube_codegen.sh)

Update `codegen-library.sh` to set exec flag on new k8s.io/code-generator scripts

1

As of `v0.28.0` of k8s.io/code-generator the `generate-groups.sh` script calls `generate-internal-groups.sh`. We should update our script to additionall add the exec flag for the `generate-internal-groups.sh` file. https://github.com/kubernetes/code-generator/blob/791c213a776b4b92f9af0805c1cf57c118ba951c/generate-groups.sh#L66

### Describe the bug When creating a `HostRule` resource by consuming AKO as a Go library, the TLS field is required. However the CRD identifies it as optional. ### Reproduction...