Bump furo from 2024.8.6 to 2025.12.19

Bumps [furo](https://github.com/pradyunsg/furo) from 2024.8.6 to 2025.12.19.
- [Release notes](https://github.com/pradyunsg/furo/releases)
- [Changelog](https://github.com/pradyunsg/furo/blob/main/docs/changelog.md)
- [Commits](pradyunsg/furo@2024.08.06...2025.12.19)

---
updated-dependencies:
- dependency-name: furo
  dependency-version: 2025.12.19
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

pyproject.toml

@@ -54,7 +54,7 @@ docs = [ "sphinx-mdinclude==0.6.2",
     "sphinx-copybutton==0.5.2",
     "sphinx-tabs==3.4.7",
     "sphinx-toolbox==3.8.0",
-    "furo==2024.8.6"]
+    "furo==2025.12.19"]
 dev = ["pre-commit==4.5.1"]
 
 [tool.hatch.version]