Bump k8s version used by Kind and e2e tests

[enarha]

Changes

Use latest k8s version supported by Kind. It's only used for the e2e tests. Latest version taken from here: https://github.com/kubernetes-sigs/kind/releases

/kind misc

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Release Notes

NONE

[enarha]

/retest

[enarha]

/approve On behalf of @avinal . Thank you.

[tekton-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: avinal, enarha, sayan-biswas

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[sayan-biswas]

/lgtm