Bump types-pygments in /requirements/partial

Bumps [types-pygments](https://github.com/python/typeshed) from 2.19.0.20251121 to 2.20.0.20260408.
- [Commits](https://github.com/python/typeshed/commits)

---
updated-dependencies:
- dependency-name: types-pygments
  dependency-version: 2.20.0.20260408
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements/partial/requirements_development.txt

@@ -19,7 +19,7 @@ types-bleach==6.3.0.20251115
 types-PyYAML==6.0.12.20250915
 types-requests==2.32.4.20260107
 types-simplejson==3.20.0.20250822
-types-Pygments==2.19.0.20251121
+types-Pygments==2.20.0.20260408
 
 # analyze pstats from Profiler
 snakeviz==2.2.2