Update dependency io.kubernetes:client-java to v21.0.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
io.kubernetes:client-java	21.0.0 -> 21.0.1

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Release Notes

kubernetes-client/java (io.kubernetes:client-java)

### [`v21.0.1`](https://togithub.com/kubernetes-client/java/compare/v21.0.0-legacy...v21.0.1)

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