Skip mapped release-note-none notes

[SaaiAravindhRaja]

What type of PR is this?

/kind bug
/kind documentation

What this PR does / why we need it:

Fixes release note rendering so PRs marked release-note-none stay out of the generated document even when a release notes map exists for the PR. The document builder now skips any note marked DoNotPublish, regardless of whether it was mapped.

The tests cover unmapped release-note-none notes, mapped release-note-none notes, and mapped notes explicitly suppressed with releasenote.do_not_publish: true. The map documentation also clarifies that merely adding a map does not clear a PR-level release-note-none exclusion.

Which issue(s) this PR fixes:

Fixes #4456

Special notes for your reviewer:

None

Does this PR introduce a user-facing change?

NONE

Testing

• go test ./pkg/notes ./pkg/notes/document -run 'TestApplyMap|TestApplyMapPreservesDoNotPublish|TestNew' -count=1
• go test ./pkg/notes -count=1
• git diff --name-only origin/master...HEAD -- '*.go' | xargs gofmt -l
• git diff --check origin/master...HEAD
• gitleaks detect --no-banner --redact --source . --log-opts origin/master..HEAD

[kubernetes-prow]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: SaaiAravindhRaja
Once this PR has been reviewed and has the lgtm label, please assign palnabarun for approval. For more information see the Code Review Process.

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Details

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[kubernetes-prow]

Welcome @SaaiAravindhRaja!

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[kubernetes-prow]

Hi @SaaiAravindhRaja. 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.

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[SaaiAravindhRaja]

hi is there anything i can improve on?