Add missing documentation change

[bquorning]

It looks like we forgot to run rake update_cops_documentation in the pull request #10697. I don't know how CI didn't catch this.

---

Before submitting the PR make sure the following are checked:

• The PR relates to only one subject with a clear title and description in grammatically correct, complete sentences.
• Wrote good commit messages.
• Commit message starts with [Fix #issue-number] (if the related issue exists).
• Feature branch is up-to-date with master (if not - rebase it).
• Squashed related commits together.
• Added tests.
• Ran bundle exec rake default. It executes all tests and runs RuboCop on its own code.
• Added an entry (file) to the changelog folder named {change_type}_{change_description}.md if the new code introduces user-observable changes. See changelog entry format for details.

[koic]

These are not needed as they are auto-generated at release time.

[koic]

See #9045 for more information.

• processing code moved to new task update_cops_documentation (no public description) that is triggered by cut_release

[bquorning]

Thanks. I guess it’s been a while since I really worked in this repo last.