Bump sphinx-rtd-theme from 1.2.0 to 2.0.0

Bumps [sphinx-rtd-theme](https://github.com/readthedocs/sphinx_rtd_theme) from 1.2.0 to 2.0.0.
- [Changelog](https://github.com/readthedocs/sphinx_rtd_theme/blob/master/docs/changelog.rst)
- [Commits](readthedocs/sphinx_rtd_theme@1.2.0...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] <support@github.com>

Author: dependabot[bot]

development.txt

@@ -4,4 +4,4 @@ pytest==7.2.2
 pytest-cov==4.0.0
 myst-parser==1.0.0
 Sphinx==6.1.3
-sphinx-rtd-theme==1.2.0
+sphinx-rtd-theme==2.0.0