📝 Update release notes

docs/en/docs/release-notes.md

@@ -2,6 +2,7 @@
 
 ## Latest Changes
 
+* 👷 Add GitHub Action cache to speed up CI installs. PR [#3204](https://github.com/tiangolo/fastapi/pull/3204) by [@tiangolo](https://github.com/tiangolo).
 * ⬆️ Upgrade setup-python GitHub Action to v2. PR [#3203](https://github.com/tiangolo/fastapi/pull/3203) by [@tiangolo](https://github.com/tiangolo).
 * 🌐 Initialize new language Polish for translations. PR [#3170](https://github.com/tiangolo/fastapi/pull/3170) by [@neternefer](https://github.com/neternefer).
 * 🐛 Fix docs script to generate a new translation language with `overrides` boilerplate. PR [#3202](https://github.com/tiangolo/fastapi/pull/3202) by [@tiangolo](https://github.com/tiangolo).