[8.11](backport #3762) Sync k8s migtraion to buildkite

[mergify]

This is an automatic backport of pull request #3762 done by Mergify.
Cherry-pick of adf19db has failed:

On branch mergify/bp/8.11/pr-3762
Your branch is up to date with 'origin/8.11'.

You are currently cherry-picking commit adf19dbcdf.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   .buildkite/pipeline.yml
	new file:   .buildkite/scripts/install-gh.sh
	new file:   .buildkite/scripts/steps/sync-k8s.sh
	modified:   deploy/kubernetes/Makefile

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	deleted by us:   .buildkite/scripts/install-kind.sh

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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• Start Time: 2023-11-20T14:22:14.119+0000

• Duration: 20 min 28 sec

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