Bump markdown from 3.5.1 to 3.5.2

Bumps [markdown](https://github.com/Python-Markdown/markdown) from 3.5.1 to 3.5.2.
- [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@3.5.1...3.5.2)

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

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -7,7 +7,7 @@ django-import-export==3.3.5
 djangorestframework==3.14.0
 gunicorn==21.2.0
 importlib-metadata==7.0.1
-Markdown==3.5.1
+Markdown==3.5.2
 python-dotenv==1.0.0
 pytz==2023.3.post1
 six==1.16.0