build(deps-dev): bump sphinx-rtd-theme from 2.0.0 to 3.0.2 in /packages

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:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

packages/requirements-dev.txt

@@ -78,7 +78,7 @@ rich==13.9.4 ; python_version >= "3.9" and python_version < "4.0"
 shellingham==1.5.4 ; python_version >= "3.9" and python_version < "4.0"
 smmap==5.0.2 ; python_version >= "3.9" and python_version < "4.0"
 snowballstemmer==2.2.0 ; python_version >= "3.9" and python_version < "4.0"
-sphinx-rtd-theme==2.0.0 ; python_version >= "3.9" and python_version < "4.0"
+sphinx-rtd-theme==3.0.2 ; python_version >= "3.9" and python_version < "4.0"
 sphinx==6.2.1 ; python_version >= "3.9" and python_version < "4.0"
 sphinxcontrib-applehelp==2.0.0 ; python_version >= "3.9" and python_version < "4.0"
 sphinxcontrib-devhelp==2.0.0 ; python_version >= "3.9" and python_version < "4.0"