Add an attribute for version release notes

[eromanova97]

Version(s): 4.21

Issue: https://issues.redhat.com/browse/OBSDOCS-2776

Link to docs preview:

QE review: n/a

Additional information: Adding an official product name from the product list to be able to include it in the release note additional link

[ocpdocs-previewbot]

🤖 Thu Jan 15 07:55:47 - Prow CI generated the docs preview:
https://104810--ocpdocs-pr.netlify.app
Complete list of updated preview URLs: artifacts/updated_preview_urls.txt

[ocpdocs-vale-bot]

🤖 [error] AsciiDocDITA.ShortDescription: Assign [role="_abstract"] to a paragraph to use it as in DITA.

[openshift-ci]

@eromanova97: all tests passed!

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[eromanova97]

/cherrypick enterprise-4.21

[openshift-cherrypick-robot]

@eromanova97: new pull request created: #104812

Details

In response to this:

/cherrypick enterprise-4.21

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.