CHANGELOG: add description for patch 1390

Author: dannywillems

CHANGELOG.md

@@ -62,6 +62,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   [#1340](https://github.com/o1-labs/mina-rust/pull/1340),
   [#2981ecf](https://github.com/o1-labs/mina-rust/commit/2981ecf9519517f69947838407a09ea96f7ff293),
   [#1e9f33f](https://github.com/o1-labs/mina-rust/commit/1e9f33f125dcaab36d9dd2dc17759e3476bc36e8))
+- **Documentation**: add release communication checklist
+  ([#1390](https://github.com/o1-labs/mina-rust/pull/1390))
 
 ### Changed