Regenerated customes roles documentation

What does this MR do and why?

This MR does a clean regeneration of the custom roles docs as described by the error message in this failing master job: https://gitlab.com/gitlab-org/gitlab/-/jobs/6191901387

Open incident: gitlab-org/quality/engineering-productivity/master-broken-incidents#5314 (closed)

We recently added this check in !144426 (merged), and since it was merged recently with a bunch of stuck pipelines due to the QA Runner incident, it's not yet clear whether there's actually a configuration problem or if this is a pipeline that started before the new job was merged.

This MR just fixes the immediate problem, and we'll have to keep an eye out for more failures and double check the CI configuration to make sure these errors surface in MRs before we merge 🙄

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