Enable cherrypick plugin on this repo

[robscott]

What would you like to be added:
Many Kubernetes repos, including Gateway API, have added the /cherry-pick plugin that makes it remarkably easy to automatically create cherry-pick PRs into release branches. Take a look at this recent commit for an example: kubernetes/test-infra@dbd97fe

Why is this needed:
Simplify patch releases.

/cc @danehans @kfswain @nirrozenbaum

[AvineshTripathi]

seems like a small change (for api gateway ref: kubernetes/test-infra@55509c8) if no one is working on this, I can help here

[kfswain]

Sounds great! Thanks @AvineshTripathi!!

[k8s-triage-robot]

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/lifecycle stale

[nirrozenbaum]

closing as completed