Bump markdown from 3.4.4 to 3.5 (#3860)

Bumps [markdown](https://github.com/Python-Markdown/markdown) from 3.4.4 to 3.5.
- [Changelog](https://github.com/Python-Markdown/markdown/blob/master/docs/changelog.md)
- [Commits](Python-Markdown/markdown@3.4.4...3.5)

---
updated-dependencies:
- dependency-name: markdown
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements-base.txt

@@ -214,7 +214,7 @@ lxml==4.9.3
     #   premailer
 mako==1.2.4
     # via alembic
-markdown==3.4.4
+markdown==3.5
     # via -r requirements-base.in
 markupsafe==2.1.3
     # via