📝 Update release notes

docs/en/docs/release-notes.md

@@ -2,6 +2,7 @@
 
 ## Latest Changes
 
+* ⬆️ Upgrade Black. PR [#9661](https://github.com/tiangolo/fastapi/pull/9661) by [@tiangolo](https://github.com/tiangolo).
 * ⬆️ Upgrade and fully migrate to Ruff, remove isort, includes a couple of tweaks suggested by the new version of Ruff. PR [#9660](https://github.com/tiangolo/fastapi/pull/9660) by [@tiangolo](https://github.com/tiangolo).
 * ♻️ Update internal type annotations and upgrade mypy. PR [#9658](https://github.com/tiangolo/fastapi/pull/9658) by [@tiangolo](https://github.com/tiangolo).
 * 💚 Update CI cache to fix installs when dependencies change. PR [#9659](https://github.com/tiangolo/fastapi/pull/9659) by [@tiangolo](https://github.com/tiangolo).