Bump markdown from 3.5 to 3.5.1 (#789)

Bumps [markdown](https://github.com/Python-Markdown/markdown) from 3.5 to 3.5.1.
- [Release notes](https://github.com/Python-Markdown/markdown/releases)
- [Changelog](https://github.com/Python-Markdown/markdown/blob/master/docs/changelog.md)
- [Commits](Python-Markdown/markdown@3.5...3.5.1)

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

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

requirements.txt

@@ -2,7 +2,7 @@ Flask==3.0.0
 flask-talisman==1.1.0
 google-cloud-storage==2.13.0
 gunicorn==21.2.0
-markdown==3.5
+markdown==3.5.1
 pytest==7.4.3
 pytest-watch==4.2.0
 pytest-cov==4.1.0