Upgrade cobra for better zsh support

[sylr]

kustomize build ... does not complete file paths on ZSH.

It will with this upgrade.

[k8s-ci-robot]

Hi @sylr. Thanks for your PR.

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[sylr]

@natasha41575 could you merge this please ?

[sylr]

@natasha41575 ?

[natasha41575]

/ok-to-test

[KnVerey]

I was initially very wary of all the new dependencies this pulls in, but I see that kubectl has already merged the same upgrade (and indeed already had most of the dependencies in question from other sources before the upgrade): kubernetes/kubernetes#103448.

PR needs rebase before LGTM.

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: KnVerey, sylr

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[sylr]

@KnVerey rebased

[KnVerey]

/lgtm