fix(kuma-cp) Switch leader election to leader-for-life (backport #3023)

[mergify]

This is an automatic backport of pull request #3023 done by Mergify.
Cherry-pick of f5b2b27 has failed:

On branch mergify/bp/release-1.3/pr-3023
Your branch is up to date with 'origin/release-1.3'.

You are currently cherry-picking commit f5b2b27e.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
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Changes to be committed:
	modified:   app/kumactl/cmd/install/testdata/install-control-plane.cni-enabled.golden.yaml
	modified:   app/kumactl/cmd/install/testdata/install-control-plane.defaults.golden.yaml
	modified:   app/kumactl/cmd/install/testdata/install-control-plane.global.golden.yaml
	modified:   app/kumactl/cmd/install/testdata/install-control-plane.override-env-vars.golden.yaml
	modified:   app/kumactl/cmd/install/testdata/install-control-plane.overrides.golden.yaml
	modified:   app/kumactl/cmd/install/testdata/install-control-plane.with-ingress.golden.yaml
	modified:   app/kumactl/cmd/install/testdata/install-control-plane.zone.golden.yaml
	modified:   deployments/charts/kuma/templates/cp-deployment.yaml

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   go.mod
	both modified:   go.sum
	both modified:   pkg/plugins/bootstrap/k8s/plugin.go

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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[parkanzky]

Closing, this should go in to 1.4