Bump types-simplejson in /requirements/partial

Bumps [types-simplejson](https://github.com/python/typeshed) from 3.20.0.20250822 to 3.20.0.20260408.
- [Commits](https://github.com/python/typeshed/commits)

---
updated-dependencies:
- dependency-name: types-simplejson
  dependency-version: 3.20.0.20260408
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

requirements/partial/requirements_development.txt

@@ -18,7 +18,7 @@ types-beautifulsoup4==4.12.0.20250516
 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-simplejson==3.20.0.20260408
 types-Pygments==2.19.0.20251121
 
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