Updated clinet.go to 0.31.1

[cheftako]

Trying to unblock dependabot and enable the 0.31 release. Trying to upgrade dependencies in stages.

$ go get k8s.io/[email protected]
$ go mod tidy
$ go mod vendor

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: cheftako

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• OWNERS [cheftako]

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[k8s-ci-robot]

@cheftako: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-apiserver-network-proxy-make-lint-master	5ead778	link	true	/test pull-apiserver-network-proxy-make-lint-master

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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[jkh52]

/lgtm

I'm good with force submitting this, if the only failure is lint.