Bump sphinx-rtd-theme from 1.3.0 to 2.0.0 (#1309)

Bumps [sphinx-rtd-theme](https://github.com/readthedocs/sphinx_rtd_theme) from 1.3.0 to 2.0.0.
- [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
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

requirements_dev.txt

@@ -13,6 +13,6 @@ recommonmark==0.7.1
 requests==2.31.0
 requests-mock==1.11.0
 sphinx==7.1.2
-sphinx-rtd-theme==1.3.0
+sphinx-rtd-theme==2.0.0
 tqdm==4.66.1
 websocket-client==1.6.4