chore(deps): Bump sphinx from 1.8.4 to 1.8.6 (#3021)

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 1.8.4 to 1.8.6.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/master/CHANGES.rst)
- [Commits](sphinx-doc/sphinx@v1.8.4...v1.8.6)

---
updated-dependencies:
- dependency-name: sphinx
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

pyproject.toml

@@ -66,7 +66,7 @@ ruff = "0.4.4"
 # Sync with version in .pre-commit-config.yaml
 black = "24.4.2"
 
-sphinx="1.8.4"
+sphinx="1.8.6"
 sphinx-rtd-theme=">=0.4.3"
 
 ptvsd="4.3.2"