build(deps): update setuptools requirement in /_requirements

Updates the requirements on [setuptools](https://github.com/pypa/setuptools) to permit the latest version.
- [Release notes](https://github.com/pypa/setuptools/releases)
- [Changelog](https://github.com/pypa/setuptools/blob/main/NEWS.rst)
- [Commits](pypa/setuptools@v68.0.0...v69.2.0)

---
updated-dependencies:
- dependency-name: setuptools
  dependency-type: direct:production
...

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

_requirements/default.txt

@@ -1,4 +1,4 @@
-setuptools>=68.0.0, <69.1.0
+setuptools>=68.0.0, <69.3.0
 matplotlib>=3.0.0, <3.9.0
 ipython[notebook]>=8.0.0, <8.17.0
 urllib3  # for ipython