Bump pygments from 2.9.0 to 2.10.0

Bumps [pygments](https://github.com/pygments/pygments) from 2.9.0 to 2.10.0.
- [Release notes](https://github.com/pygments/pygments/releases)
- [Changelog](https://github.com/pygments/pygments/blob/master/CHANGES)
- [Commits](pygments/pygments@2.9.0...2.10.0)

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

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

docs-requirements.txt

@@ -32,7 +32,7 @@ packaging==20.9
     # via sphinx
 pycparser==2.20
     # via cffi
-pygments==2.9.0
+pygments==2.10.0
     # via sphinx
 pyparsing==2.4.7
     # via packaging