Bump setuptools from 69.1.1 to 70.0.0 in /python/sphinx_docs

Bumps [setuptools](https://github.com/pypa/setuptools) from 69.1.1 to 70.0.0.
- [Release notes](https://github.com/pypa/setuptools/releases)
- [Changelog](https://github.com/pypa/setuptools/blob/main/NEWS.rst)
- [Commits](pypa/setuptools@v69.1.1...v70.0.0)

---
updated-dependencies:
- dependency-name: setuptools
  dependency-type: indirect
...

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