🌱chore: Change sort to slices package

[dongjiang1989]

Replace the sort package with the slices package to simplify the code.

[k8s-ci-robot]

Hi @dongjiang1989. Thanks for your PR.

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[k8s-ci-robot]

LGTM label has been added.

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Git tree hash: 420a60e1118ea17867ad152a24557d00ae987584

[alvaroaleman]

/ok-to-test

[sbueringer]

/hold

[dongjiang1989]

@sbueringer @alvaroaleman fixed. Please re-check it

[sbueringer]

Thx!

/lgtm

Leaving hold so @alvaroaleman can take another look

[k8s-ci-robot]

LGTM label has been added.

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Git tree hash: 209d12163f728d28fb1ba1cd0ddde0c6113eecf7

[alvaroaleman]

/hold cancel

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: alvaroaleman, dongjiang1989

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