chore(deps): bump pymdown-extensions from 10.1 to 10.2.1

Bumps [pymdown-extensions](https://github.com/facelessuser/pymdown-extensions) from 10.1 to 10.2.1.
- [Release notes](https://github.com/facelessuser/pymdown-extensions/releases)
- [Commits](facelessuser/pymdown-extensions@10.1.0...10.2.1)

---
updated-dependencies:
- dependency-name: pymdown-extensions
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

requirements.txt

@@ -14,7 +14,7 @@ Markdown==3.4.3 # at next update, please remove replace_marker() function in toc
 phpserialize==1.3.0 # phpserialize is only required during the migration
 psycopg2==2.9.6
 pyjwt==1.7.1
-pymdown-extensions==10.1
+pymdown-extensions==10.2.1
 pyproj==3.6.0
 pyramid-jwtauth==0.1.3
 pyramid==1.10.8