Bump markdown from 3.0.1 to 3.8.1

Bumps [markdown](https://github.com/Python-Markdown/markdown) from 3.0.1 to 3.8.1.
- [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@3.0.1...3.8.1)

---
updated-dependencies:
- dependency-name: markdown
  dependency-version: 3.8.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -62,7 +62,7 @@ hsmodels==1.0.4
 html5lib==1.1
 ipaddress==1.0.22
 jsonschema==2.6.0
-Markdown==3.0.1
+Markdown==3.8.1
 matplotlib==3.10.1
 Mezzanine==6.1.1
 mock==1.3.0