Bump the python-dependencies group with 1 update (#14)

Updates the requirements on [sphinx-rtd-theme](https://github.com/readthedocs/sphinx_rtd_theme) to permit the latest version.
- [Changelog](https://github.com/readthedocs/sphinx_rtd_theme/blob/master/docs/changelog.rst)
- [Commits](readthedocs/sphinx_rtd_theme@1.3.0...2.0.0)

---
updated-dependencies:
- dependency-name: sphinx-rtd-theme
  dependency-type: direct:development
  dependency-group: python-dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pyproject.toml

@@ -28,4 +28,4 @@ aiohttp = {extras = ["speedups"], version = "^3.8.4"}
 [tool.poetry.group.docs.dependencies]
 sphinx = "7.1.2"
 sphinx-copybutton = "0.5.2"
-sphinx-rtd-theme = "1.3.0"
+sphinx-rtd-theme = "2.0.0"