📝 Update release notes

Author: github-actions

release-notes.md

@@ -4,6 +4,10 @@
 
 * 👷 Do not sync labels as it overrides manually added labels. PR [#1307](https://github.com/fastapi/full-stack-fastapi-template/pull/1307) by [@tiangolo](https://github.com/tiangolo).
 
+### Features
+
+* 🩺 Add DB healthcheck. PR [#1342](https://github.com/fastapi/full-stack-fastapi-template/pull/1342) by [@tiangolo](https://github.com/tiangolo).
+
 ### Refactors
 
 * 🔥 Enable support for Arm Docker images in Mac, remove old patch. PR [#1341](https://github.com/fastapi/full-stack-fastapi-template/pull/1341) by [@tiangolo](https://github.com/tiangolo).