📝 Update release notes

docs/en/docs/release-notes.md

@@ -2,6 +2,7 @@
 
 ## Latest Changes
 
+* 🌐 Add Japanese translation for `docs/ja/docs/advanced/conditional-openapi.md`. PR [#2631](https://github.com/tiangolo/fastapi/pull/2631) by [@sh0nk](https://github.com/sh0nk).
 * 🌐 Fix Japanese translation of `docs/ja/docs/tutorial/body.md`. PR [#3062](https://github.com/tiangolo/fastapi/pull/3062) by [@a-takahashi223](https://github.com/a-takahashi223).
 * 🌐 Add Portuguese translation for `docs/pt/docs/tutorial/background-tasks.md`. PR [#2170](https://github.com/tiangolo/fastapi/pull/2170) by [@izaguerreiro](https://github.com/izaguerreiro).
 * 🌐 Add Portuguese translation for `docs/deployment/deta.md`. PR [#4442](https://github.com/tiangolo/fastapi/pull/4442) by [@lsglucas](https://github.com/lsglucas).