build(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] <[email protected]>

Author: dependabot[bot]

poetry.lock

@@ -27,7 +27,7 @@ bandit = "^1.8.3"
 black = "^25.1.0"
 
 [tool.poetry.group.docs.dependencies]
-sphinx-rtd-theme = "^2.0.0"
+sphinx-rtd-theme = "^3.0.2"
 
 [tool.poetry.scripts]
 gl-cname = "gardenlinux.features.cname_main:main"