doc : CHANGELOG.md updated

Author: sepandhaghighi

CHANGELOG.md

@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Changed
 - `README.md` updated
 - Requests header updated
+- Test system modified
 ## [0.1] - 2025-04-25
 ### Added
 - Support [ipinfo.io](https://ipinfo.io)