changelog: Set release date for v3.5.7
@@ -4,7 +4,7 @@ Previous change logs can be found at [CHANGELOG-3.4](https://github.com/etcd-io/
<hr>
-## v3.5.7 (TBD)
+## v3.5.7 (2023-01-20)
### etcd server
- Fix [Remove memberID from data corrupt alarm](https://github.com/etcd-io/etcd/pull/14852).
