fix vendor/k8s.io/apimachinery/pkg/labels staticcheck

[habibrosyad]

What type of PR is this?

/kind cleanup

What this PR does / why we need it:

Fixes vendor/k8s.io/apimachinery/pkg/labels staticcheck errors.

Which issue(s) this PR fixes:

Part of #92402

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

NONE

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

[k8s-ci-robot]

Hi @habibrosyad. Thanks for your PR.

I'm waiting for a kubernetes member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[neolit123]

/ok-to-test
/priority backlog

[habibrosyad]

/test pull-kubernetes-e2e-kind
/test pull-kubernetes-integration

[fedebongio]

/assign @cheftako

[habibrosyad]

/assign @lavalamp

[lavalamp]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: habibrosyad, lavalamp

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Needs approval from an approver in each of these files:

• hack/OWNERS [lavalamp]
• staging/src/k8s.io/apimachinery/pkg/OWNERS [lavalamp]

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[cheftako]

/lgtm