Bump sphinx-external-toc from 1.0.0 to 1.0.1 in /docs

Bumps [sphinx-external-toc](https://github.com/executablebooks/sphinx-external-toc) from 1.0.0 to 1.0.1.
- [Release notes](https://github.com/executablebooks/sphinx-external-toc/releases)
- [Changelog](https://github.com/executablebooks/sphinx-external-toc/blob/main/CHANGELOG.md)
- [Commits](executablebooks/sphinx-external-toc@v1.0.0...v1.0.1)

---
updated-dependencies:
- dependency-name: sphinx-external-toc
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

docs/requirements.txt

@@ -3,7 +3,7 @@ myst-parser==2.0.0
 sphinx_rtd_theme==2.0.0
 sphinx-copybutton==0.5.2
 sphinx-design==0.5.0
-sphinx_external_toc==1.0.0
+sphinx_external_toc==1.0.1
 semver==3.0.2
 urllib3==2.1.0
 sphinx-autobuild==2021.3.14