Updates related_integrations field API docs

[maximpn]

Relates to: https://github.com/elastic/kibana/issues/173595 Epic: https://github.com/elastic/security-team/issues/1974

Summary

API updates for https://github.com/elastic/kibana/issues/173595.

Updates related API docs for related_integration field changes made in https://github.com/elastic/kibana/pull/178295.

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[mergify[bot]]

This pull request is now in conflicts. Could you fix it @maximpn? 🙏 To fixup this pull request, you can check out it locally. See documentation: https://help.github.com/articles/checking-out-pull-requests-locally/

git fetch upstream
git checkout -b allow-editing-related-integrations upstream/allow-editing-related-integrations
git merge upstream/main
git push upstream allow-editing-related-integrations

[mergify[bot]]

This pull request is now in conflicts. Could you fix it @maximpn? 🙏 To fixup this pull request, you can check out it locally. See documentation: https://help.github.com/articles/checking-out-pull-requests-locally/

git fetch upstream
git checkout -b allow-editing-related-integrations upstream/allow-editing-related-integrations
git merge upstream/main
git push upstream allow-editing-related-integrations

[maximpn]

Hi @joepeeples,

I've updated the PR according to your comments. The last this left is to describe how to get a package name and a link to EPR documentation. Check my comment above.

[maximpn]

@joepeeples,

I've addressed your last comments. Could you review the recent changes?