fix(deps): bump sphinx-rtd-theme from 2.0.0 to 3.0.2

Bumps [sphinx-rtd-theme](https://github.com/readthedocs/sphinx_rtd_theme) from 2.0.0 to 3.0.2.
- [Changelog](https://github.com/readthedocs/sphinx_rtd_theme/blob/master/docs/changelog.rst)
- [Commits](readthedocs/sphinx_rtd_theme@2.0.0...3.0.2)

---
updated-dependencies:
- dependency-name: sphinx-rtd-theme
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

requirements-docs.txt

@@ -2,4 +2,4 @@ matplotlib==3.9.0
 numpydoc==1.8.0
 sphinx==7.3.7
 sphinx-gallery==0.18.0
-sphinx-rtd-theme==2.0.0
+sphinx-rtd-theme==3.0.2