added changelog

Author: ritamerkl

Packages/com.unity.inputsystem/CHANGELOG.md

@@ -10,6 +10,9 @@ however, it has to be formatted properly to pass verification tests.
 
 ## [Unreleased] - yyyy-mm-dd
 
+### Fixed
+- Fixed an issue where all action maps were enabled initially for project wide actions, which overrode the PlayerInput action map configuration. [ISXB-920](https://issuetracker.unity3d.com/product/unity/issues/guid/ISXB-920)
+
 ## [1.13.1] - 2025-02-18
 
 ### Fixed