Changelog: entry for PR #1894

Author: iostat

CHANGELOG.md

@@ -31,6 +31,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Remove ocaml-interop dependency, fix
   [#1235](https://github.com/o1-labs/mina-rust/issues/1235)
   ([#1646](https://github.com/o1-labs/mina-rust/pull/1646))
+- *Build** Update Rust to 1.92 [#1894](https://github.com/o1-labs/mina-rust/issues/1894)
 
 ### Removed