fix: fix miss makezero bug

[alingse]

I was running github actions to run linter makezero for top github golang repos.

see issues alingse/go-linter-runner#1

and the github actions output https://github.com/alingse/go-linter-runner/actions/runs/9242652262/job/25425741904

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append to slice `profiles` with non-zero initialized length at https://github.com/kubernetes/test-infra/blob/master/gopherage/cmd/merge/merge.go#L67:14
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[BenTheElder]

/lgtm
/approve
thanks!

looks like we could run this in CI to prevent future regressions by upgrading golangci-lint?
https://github.com/golangci/golangci-lint/commits/master/pkg/golinters/makezero

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: alingse, BenTheElder

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[BenTheElder]

/ok-to-test