Update sphinx-autodoc-typehints requirement from ~=2.3.0 to ~=2.4.0

Updates the requirements on [sphinx-autodoc-typehints](https://github.com/tox-dev/sphinx-autodoc-typehints) to permit the latest version.
- [Release notes](https://github.com/tox-dev/sphinx-autodoc-typehints/releases)
- [Changelog](https://github.com/tox-dev/sphinx-autodoc-typehints/blob/main/CHANGELOG.md)
- [Commits](tox-dev/sphinx-autodoc-typehints@2.3.0...2.4.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

pyproject.toml

@@ -127,7 +127,7 @@ docs = [
     "myst-parser ~= 3.0.0",
     # Sphinx 7.2.0 is the first version to drop Python 3.8.
     "sphinx >= 7.2.0",
-    "sphinx-autodoc-typehints ~= 2.3.0",
+    "sphinx-autodoc-typehints ~= 2.4.0",
     "sphinx-copybutton ~= 0.5.2",
     # sphinx-design 0.5.0 is the first to allow Sphinx 7.
     "sphinx-design ~= 0.6.0",