Add option to configure IPVS timeouts in kube-proxy configration

[fulii]

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespaces from that line:

/kind api-change
/kind bug
/kind cleanup
/kind design
/kind documentation
/kind failing-test
/kind feature
/kind flake

What this PR does / why we need it:

• Configurable IPVS timeouts with kubespray.

Which issue(s) this PR fixes:

Fixes #6395

Does this PR introduce a user-facing change?:

- Extend `roles/kubernetes/master/templates/kubeadm-controlplane.v1beta2.yaml.j2` with IPVS timeout options.

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[k8s-ci-robot]

Hi @fulii. Thanks for your PR.

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[fulii]

I signed it

[floryut]

/ok-to-test

[EppO]

/lgtm

[Miouge1]

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: fulii, Miouge1

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