[ontodev#1070] changelog updated

Author: Petr Křemen

CHANGELOG.md

@@ -6,6 +6,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+- Downgrade SnakeYaml to 1.31 [#1070]
 
 ## [1.9.1] - 2022-10-28