Bump furo from 2024.8.6 to 2025.9.25

Bumps [furo](https://github.com/pradyunsg/furo) from 2024.8.6 to 2025.9.25.
- [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...2025.09.25)

---
updated-dependencies:
- dependency-name: furo
  dependency-version: 2025.9.25
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

pyproject.toml

@@ -43,7 +43,7 @@ dev = [
     "setuptools",
     "wheel",
     "Sphinx>=6.0,<9.0",
-    "furo==2024.8.6",
+    "furo==2025.9.25",
     "myst-parser>=1.0",
     "sphinx-copybutton",
     "sphinx-autobuild",