chore(deps): update sphinx requirement

Updates the requirements on [sphinx](https://github.com/sphinx-doc/sphinx) to permit the latest version.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES.rst)
- [Commits](sphinx-doc/sphinx@v7.3.7...v8.1.0)

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

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

pyproject.toml

@@ -55,7 +55,7 @@ precommit = [
  "commitizen>=2.39.1,<3.29.0",
 ]
 documentation = [
- "sphinx>=7.3.7,<8.1.0",
+ "sphinx>=7.3.7,<8.2.0",
  "furo>=2023.5.20,<2024.9.0",
  "sphinx-autodoc-typehints>=2.2.2,<2.5.0",
  "recommonmark~=0.7.1",