build(deps): update furo requirement from ==2023.* to ==2024.*

Updates the requirements on [furo](https://github.com/pradyunsg/furo) to permit the latest version.
- [Release notes](https://github.com/pradyunsg/furo/releases)
- [Changelog](https://github.com/pradyunsg/furo/blob/main/docs/changelog.md)
- [Commits](pradyunsg/furo@2023.03.23...2024.01.29)

---
updated-dependencies:
- dependency-name: furo
  dependency-type: direct:production
...

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

requirements/documentation.txt

@@ -1,7 +1,7 @@
 # Documentation
 # -------------
 
-furo==2023.*
+furo==2024.*
 myst-parser[linkify]>=0.18,<2.1
 sphinx-argparse-cli>=1,<2
 sphinx-autobuild==2021.3.14