build(deps-dev): bump pymdown-extensions from 10.10.1 to 10.11.1

Bumps [pymdown-extensions](https://github.com/facelessuser/pymdown-extensions) from 10.10.1 to 10.11.1.
- [Release notes](https://github.com/facelessuser/pymdown-extensions/releases)
- [Commits](facelessuser/pymdown-extensions@10.10.1...10.11.1)

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

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