build(deps-dev): bump sphinx from 7.3.7 to 9.0.4 (#789)

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 7.3.7 to 9.0.4.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/v9.0.4/CHANGES.rst)
- [Commits](sphinx-doc/sphinx@v7.3.7...v9.0.4)

---
updated-dependencies:
- dependency-name: sphinx
  dependency-version: 9.0.4
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pyproject.toml

@@ -56,7 +56,7 @@ remote = [
 docs = [
     "ipython==8.26.0",
     "numpydoc==1.7.0",
-    "sphinx==7.3.7",
+    "sphinx==9.0.4",
     "sphinx_rtd_theme==2.0.0",
     "sphinx_book_theme==1.2.0",
     "sphinx-copybutton==0.5.2",