Bump markdown from 3.3.4 to 3.3.6

Bumps [markdown](https://github.com/Python-Markdown/markdown) from 3.3.4 to 3.3.6.
- [Release notes](https://github.com/Python-Markdown/markdown/releases)
- [Commits](https://github.com/Python-Markdown/markdown/compare/3.3.4...3.3.6)

---
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

@@ -17,7 +17,7 @@ idna==3.3
 isort==5.10.1
 jsonfield==3.1.0
 lazy-object-proxy==1.6.0
-Markdown==3.3.4
+Markdown==3.3.6
 mccabe==0.6.1
 platformdirs==2.4.0
 psycopg2==2.9.2