Mention one more change

Author: w8jcik

docs/source/CHANGELOG.md

@@ -15,6 +15,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 
 - The tests no longer rely on `/tmp`; they now create temporary files in the current directory instead. This approach was already used throughout the package, except in the tests. The change makes the behavior consistent and avoids issues that occurred on certain clusters when using `/tmp`.
+- Prevent race condition when creating `error` directory.
 
 ### Added