Bump markdown from 3.4.3 to 3.4.4 (#186)

Bumps [markdown](https://github.com/Python-Markdown/markdown) from 3.4.3 to 3.4.4.
- [Changelog](https://github.com/Python-Markdown/markdown/blob/master/docs/change_log/release-2.6.md)
- [Commits](Python-Markdown/markdown@3.4.3...3.4.4)

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

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

requirements.txt

@@ -18,7 +18,7 @@ idna==3.4
 itsdangerous==2.1.2
 Jinja2==3.1.2
 Mako==1.2.4
-Markdown==3.4.3
+Markdown==3.4.4
 MarkupSafe==2.1.3
 musicbrainzngs==0.7.1
 netifaces==0.11.0