[deps] Update readme-renderer requirement from ~=28.0 to >=28,<45

Updates the requirements on [readme-renderer](https://github.com/pypa/readme_renderer) to permit the latest version.
- [Release notes](https://github.com/pypa/readme_renderer/releases)
- [Changelog](https://github.com/pypa/readme_renderer/blob/main/CHANGES.rst)
- [Commits](pypa/readme_renderer@28.0...44.0)

---
updated-dependencies:
- dependency-name: readme-renderer
  dependency-type: direct:development
...

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

setup.py

@@ -54,7 +54,7 @@
             'black~=23.3.0',
             'flake8~=6.0.0',
             'isort~=5.10.1',
-            'readme-renderer~=37.3.0',
+            'readme-renderer>=37.3,<44.1',
             'coveralls~=4.0.1',  # depends on coverage as well
             'tblib~=3.0.0',
             'docstrfmt~=1.7.0',