build(deps): bump furo in /docs in the docs-dependencies group

Bumps the docs-dependencies group in /docs with 1 update: [furo](https://github.com/pradyunsg/furo).


Updates `furo` from 2024.4.27 to 2024.5.6
- [Release notes](https://github.com/pradyunsg/furo/releases)
- [Changelog](https://github.com/pradyunsg/furo/blob/main/docs/changelog.md)
- [Commits](pradyunsg/furo@2024.04.27...2024.05.06)

---
updated-dependencies:
- dependency-name: furo
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: docs-dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

docs/requirements.txt

@@ -1,4 +1,4 @@
 Sphinx==7.3.7
 sphinx-autodoc-typehints==2.1.0
-furo==2024.4.27
+furo==2024.5.6
 myst-parser==3.0.1