Example examples/helmrepo-hub-channel does not work

[tamalsaha]

Describe the bug
I followed the instructions in README in k8s 1.27.0 . But it failed with the following error:

I0611 15:29:57.278797       1 sync_appsubstatus.go:64] cluster: c1, appsub: default/nginx-sub, action: APPLY, hub:false, standalone:false
I0611 15:29:57.283266       1 event.go:285] Event(v1.ObjectReference{Kind:"Subscription", Namespace:"default", Name:"nginx-sub", UID:"474b702c-5eaa-4d5f-bf4c-416122a49c64", APIVersion:"apps.open-cluster-management.io/v1", ResourceVersion:"2479", FieldPath:""}): type: 'Normal' reason: 'Update' AppSub: 'default/nginx-sub'; User: ''; Action: 'Update'; PackageStatus: 'Name|Namespace|Apiversion|Kind|Phase|Message|LastUpdateTime,nginx-ingress-simple|default|apps.open-cluster-management.io/v1|HelmRelease|Failed|InstallError unable to build kubernetes objects from release manifest: resource mapping not found for name: "nginx-ingress-simple-default-backend" namespace: "" from "": no matches for kind "PodDisruptionBudget" in version "policy/v1beta1"

It seems that the chart channel needs to be updated and not use PDB/v1beta1 anymore.

To Reproduce
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Expected behavior
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Environment ie: Kubernetes version:
1.27.0

Additional context
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[mikeshng]

/assign @lennysgarage

Hi Jonathan, could you please look into this issue? I think we can use a completely different helm chart as example if necessary.