update: update setuptools requirement from ~=68.0.0 to ~=68.1.0

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...v68.1.0)

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

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

requirements_dev.txt

@@ -8,4 +8,4 @@ pytest-cov~=4.1.0
 pytest-mock~=3.11.1
 pytest-subprocess~=1.5.0
 requests-mock~=1.11.0
-setuptools~=68.0.0
+setuptools~=68.1.0