Bump pygments from 2.16.1 to 2.17.2

Bumps [pygments](https://github.com/pygments/pygments) from 2.16.1 to 2.17.2.
- [Release notes](https://github.com/pygments/pygments/releases)
- [Changelog](https://github.com/pygments/pygments/blob/master/CHANGES)
- [Commits](pygments/pygments@2.16.1...2.17.2)

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

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

docs/requirements.txt

@@ -1,5 +1,5 @@
 # Syntax highlighting
-Pygments==2.16.1
+Pygments==2.17.2
 
 # Sphinx
 sphinx>=4.4.0