lint: enable optionalfields linter for multiple API groups

[itzPranshul]

What type of PR is this?

/kind cleanup

What this PR does / why we need it:

This PR continues the progressive enablement of the optionalfields rule for node,imagepolicy, and coordination api group from the list #135122 (comment)

Which issue(s) this PR is related to:

builds on #135122
relates to #134671

Special notes for your reviewer:

This PR is built on top of the base enablement logic. The first three commits are of the base pr, which is ready to be merged, so only the last 3 commits need to be reviewed.

NONE

[k8s-ci-robot]

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[k8s-ci-robot]

Hi @itzPranshul. Thanks for your PR.

I'm waiting for a github.com 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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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: itzPranshul
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Details

Needs approval from an approver in each of these files:

• hack/OWNERS
• hack/kube-api-linter/OWNERS

Approvers can indicate their approval by writing /approve in a comment
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[itzPranshul]

/kind cleanup
/remove-kind api-change