Bump setuptools from 70.0.0 to 72.1.0

Bumps [setuptools](https://github.com/pypa/setuptools) from 70.0.0 to 72.1.0.
- [Release notes](https://github.com/pypa/setuptools/releases)
- [Changelog](https://github.com/pypa/setuptools/blob/main/NEWS.rst)
- [Commits](https://github.com/pypa/setuptools/compare/v70.0.0...v72.1.0)

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

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

requirements-dev.txt

@@ -5,7 +5,7 @@ wheel
 # We can't rely on just picking this up from either the base (not venv),
 # or venv-init-time version.  Specify here so that dependabot will prod us
 # about new versions.
-setuptools==70.0.0
+setuptools==72.1.0
 
 # Static analysis tools
 flake8==7.1.0