build(deps-dev): bump types-setuptools in /Tools

Bumps [types-setuptools](https://github.com/python/typeshed) from 83.0.0.20260724 to 84.0.0.20260812.
- [Commits](https://github.com/python/typeshed/commits)

---
updated-dependencies:
- dependency-name: types-setuptools
  dependency-version: 84.0.0.20260812
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

Tools/requirements-dev.txt

@@ -4,4 +4,4 @@ mypy==2.3.0
 
 # needed for peg_generator:
 types-psutil==7.2.2.20260518
-types-setuptools==83.0.0.20260724
+types-setuptools==84.0.0.20260812