build: use kustomize to generate failuredomain examples

[dkoshkin]

What problem does this PR solve?:
Uses kustomize to generate the failuredomain example files and skip kube-proxy installation.

Which issue(s) this PR fixes:
Fixes #

How Has This Been Tested?:

Special notes for your reviewer:

[Copilot]

Pull Request Overview

This PR uses kustomize to generate failuredomain example files for Nutanix clusters, which automates the creation of cluster configurations with failure domain support. The changes also include skipping kube-proxy installation when using Cilium CNI.

• Adds kustomize generation for Nutanix failure domain examples in the sync script
• Creates dedicated kustomization templates and patches for failure domain configurations
• Generates example YAML files for both helm-addon and CRS strategies with Cilium CNI

Reviewed Changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
hack/examples/sync.sh	Adds loop to generate Nutanix failure domain examples using kustomize
hack/examples/patches/nutanix/use-failure-domains.yaml	Defines JSON patches to configure failure domains and add worker machine deployment
hack/examples/overlays/clusters/nutanix-with-failuredomain/cilium/helm-addon/kustomization.yaml.tmpl	Kustomization template for helm-addon strategy with failure domains
hack/examples/overlays/clusters/nutanix-with-failuredomain/cilium/crs/kustomization.yaml.tmpl	Kustomization template for CRS strategy with failure domains
hack/examples/additional-resources/nutanix/failure-domains.yaml	Defines three NutanixFailureDomain resources for cluster configuration
examples/capi-quick-start/nutanix-cluster-failuredomain-cilium-helm-addon.yaml	Generated example cluster with failure domains and helm-addon strategy
examples/capi-quick-start/nutanix-cluster-failuredomain-cilium-crs.yaml	Generated example cluster with failure domains and CRS strategy

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[yanhua121]

What's the use of the generated example yaml files for cilium? I see there are already example yaml files at https://github.com/nutanix-cloud-native/cluster-api-runtime-extensions-nutanix/releases/tag/v0.33.1. nutanix-cluster-failuredomain-cilium-crs.yaml and nutanix-cluster-failuredomain-cilium-helm-addon.yaml
Generates example YAML files for both helm-addon and CRS strategies with Cilium CNI

[yanhua121]

What's the use of the generated example yaml files for cilium? I see there are already example yaml files at https://github.com/nutanix-cloud-native/cluster-api-runtime-extensions-nutanix/releases/tag/v0.33.1. nutanix-cluster-failuredomain-cilium-crs.yaml and nutanix-cluster-failuredomain-cilium-helm-addon.yaml Generates example YAML files for both helm-addon and CRS strategies with Cilium CNI

Clarified.