🌱ci: Update golangci-lint to v2.1.6 and adjust configuration

[dongjiang1989]

This updates golangci-lint to v2.1.6 with the associated configuration in workflows and Makefile

[k8s-ci-robot]

Hi @dongjiang1989. Thanks for your PR.

I'm waiting for a kubernetes-sigs 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.

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[sbueringer]

/ok-to-test

[sbueringer]

/retest

[dongjiang1989]

/test pull-controller-runtime-test

[dongjiang1989]

Thanks @sbueringer
Fixed unittest case fail. Please re-check it

[dongjiang1989]

/test pull-controller-runtime-test

[sbueringer]

/assign

[dongjiang1989]

Thanks @sbueringer
Please re-check it

[sbueringer]

Thank you very much!

/lgtm
/approve

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 193465e87bec7a5d20023b13a2cfdc54a16c1bf9

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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