Bump pymdown-extensions from 10.8.1 to 10.16.1 in /tools (#2759)
Bumps [pymdown-extensions](https://github.com/facelessuser/pymdown-extensions) from 10.8.1 to 10.16.1.
- [Release notes](https://github.com/facelessuser/pymdown-extensions/releases)
- [Commits](https://github.com/facelessuser/pymdown-extensions/compare/10.8.1...10.16.1)
---
updated-dependencies:
- dependency-name: pymdown-extensions
dependency-version: 10.16.1
dependency-type: direct:production
...
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