build(deps-dev): bump pygments from 2.19.2 to 2.20.0 in /requirements

Bumps [pygments](https://github.com/pygments/pygments) from 2.19.2 to 2.20.0.
- [Release notes](https://github.com/pygments/pygments/releases)
- [Changelog](https://github.com/pygments/pygments/blob/master/CHANGES)
- [Commits](pygments/pygments@2.19.2...2.20.0)

---
updated-dependencies:
- dependency-name: pygments
  dependency-version: 2.20.0
  dependency-type: direct:development
...

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

Author: dependabot[bot]

requirements/dev-requirements.txt

@@ -54,7 +54,7 @@ pluggy==1.6.0
 pycodestyle==2.14.0
 pycparser==2.23; python_full_version >= "3.9" and platform_python_implementation != "PyPy" and (platform_machine != "ppc64le" and platform_machine != "s390x") and sys_platform == "linux" and implementation_name != "PyPy"
 pyflakes==3.4.0
-pygments==2.19.2
+pygments==2.20.0
 pyproject-api==1.10.0
 pyproject-hooks==1.2.0
 pytest==9.0.1