Bump blacken-docs from 1.12.1 to 1.13.0 (#1992)

Bumps [blacken-docs](https://github.com/asottile/blacken-docs) from 1.12.1 to 1.13.0.
- [Release notes](https://github.com/asottile/blacken-docs/releases)
- [Changelog](https://github.com/adamchainz/blacken-docs/blob/main/HISTORY.rst)
- [Commits](https://github.com/asottile/blacken-docs/compare/v1.12.1...1.13.0)

---
updated-dependencies:
- dependency-name: blacken-docs
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

setup.py

@@ -80,7 +80,7 @@ setup(
             "pytest-asyncio>=0.17",
             "beautifulsoup4>=4.8.1",
             "black==22.12.0",
-            "blacken-docs==1.12.1",
+            "blacken-docs==1.13.0",
             "pytest-timeout>=1.4.2",
             "trustme>=0.7",
             "cogapp>=3.3.0",