test: update Kind bootstrap to Kubernetes 1.36

[danish9039]

Summary

• Update the shared Kind bootstrap script to Kind v0.32.0 and the Kind Kubernetes v1.36.1 node image from the upstream Kind release.
• Update the kubeadmConfigPatches payload to kubeadm.k8s.io/v1beta4 and the list-shaped apiServer.extraArgs format used by Kubernetes v1.36+.

Validation

• bash -n tests/install_KinD_create_KinD_cluster_install_kustomize.sh
• git diff --check HEAD~1..HEAD
• Local temporary-home smoke test: ran tests/install_KinD_create_KinD_cluster_install_kustomize.sh; confirmed kind v0.32.0, kubectl client v1.36.1, kustomize v5.8.1, and all three kubeflow Kind nodes Ready on Kubernetes v1.36.1 with containerd 2.3.1.

[github-actions]

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[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Updates the KinD bootstrap script to use newer KinD/Kubernetes versions and aligns the kubeadm patch format accordingly, with tests added to prevent regressions.

Changes:

• Bump KinD to v0.32.0 and the node image to Kubernetes v1.36.1 (pinned by digest).
• Update kubeadm config patch from kubeadm.k8s.io/v1beta3 to v1beta4 and adjust apiServer.extraArgs formatting.
• Add a Python test suite that validates the bootstrap script contents (versions, kubeadm format, and absence of stale containerd mirror patches).

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 4 comments.

File	Description
tests/kind_bootstrap_upgrade_test.py	Adds tests asserting the bootstrap script contains the expected versions/patch format and omits stale settings.
tests/install_KinD_create_KinD_cluster_install_kustomize.sh	Updates KinD + node image versions and changes kubeadm config patch API/version and extraArgs structure.

[juliusvonkohout]

Thank you
/lgtm
/approve

[google-oss-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: juliusvonkohout

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