Bump the python-packages group across 1 directory with 4 updates (#2362)

Bumps the python-packages group with 4 updates in the / directory: [sphinx](https://github.com/sphinx-doc/sphinx), [furo](https://github.com/pradyunsg/furo), [blacken-docs](https://github.com/adamchainz/blacken-docs) and [black](https://github.com/psf/black).


Updates `sphinx` from 7.2.6 to 7.3.7
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES.rst)
- [Commits](https://github.com/sphinx-doc/sphinx/compare/v7.2.6...v7.3.7)

Updates `furo` from 2024.1.29 to 2024.5.6
- [Release notes](https://github.com/pradyunsg/furo/releases)
- [Changelog](https://github.com/pradyunsg/furo/blob/main/docs/changelog.md)
- [Commits](https://github.com/pradyunsg/furo/compare/2024.01.29...2024.05.06)

Updates `blacken-docs` from 1.16.0 to 1.18.0
- [Changelog](https://github.com/adamchainz/blacken-docs/blob/main/CHANGELOG.rst)
- [Commits](https://github.com/adamchainz/blacken-docs/compare/1.16.0...1.18.0)

Updates `black` from 24.2.0 to 24.4.2
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](https://github.com/psf/black/compare/24.2.0...24.4.2)

---
updated-dependencies:
- dependency-name: sphinx
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: python-packages
- dependency-name: furo
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: python-packages
- dependency-name: blacken-docs
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: python-packages
- dependency-name: black
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: python-packages
...

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

setup.py

@@ -70,8 +70,8 @@ setup(
     """,
     extras_require={
         "docs": [
-            "Sphinx==7.2.6",
-            "furo==2024.1.29",
+            "Sphinx==7.3.7",
+            "furo==2024.5.6",
             "sphinx-autobuild",
             "codespell>=2.2.5",
             "blacken-docs",
@@ -84,8 +84,8 @@ setup(
             "pytest-xdist>=2.2.1",
             "pytest-asyncio>=0.17",
             "beautifulsoup4>=4.8.1",
-            "black==24.2.0",
-            "blacken-docs==1.16.0",
+            "black==24.4.2",
+            "blacken-docs==1.18.0",
             "pytest-timeout>=1.4.2",
             "trustme>=0.7",
             "cogapp>=3.3.0",