Update setuptools requirement from <68.0,>=61.0 to >=61.0,<69.0

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@v61.0.0...v68.2.2)

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

Signed-off-by: dependabot[bot] <[email protected]>

pyproject.toml

@@ -6,7 +6,7 @@
 [build-system]
 # Configuring setuptools using pyproject.toml files was introduced in
 # setuptools version 61.0.0
-requires = ["setuptools >=61.0, <68.0"]
+requires = ["setuptools >=61.0, <69.0"]
 build-backend = "setuptools.build_meta"
 
 [project]