Remove ignore rules for bio_html and cached_markdown_version
What does this MR do and why?
This MR solves #343224 (closed)
A follow up to https://gitlab.com/gitlab-org/gitlab/-/issues/340190 and 3rd and final step as per https://docs.gitlab.com/ee/development/avoiding_downtime_in_migrations.html#step-3-removing-the-ignore-rule-release-m2
MR acceptance checklist
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