update release notes

Author: K-Tone

Packages/com.unity.inputsystem/CHANGELOG.md

@@ -19,6 +19,7 @@ however, it has to be formatted properly to pass verification tests.
 - Fixed Input Actions code generation overwriting user files when the names happened to match. [ISXB-1257](https://issuetracker.unity3d.com/product/unity/issues/guid/ISXB-1257)
 - Fixed Input Actions code generation using locale-dependent rules when lowercasing and uppercasing strings. [ISXB-1406]
 - Fixed an issue when providing JoinPlayer with a specific split screen index. [ISXB-897](https://issuetracker.unity3d.com/product/unity/issues/guid/ISXB-897)
+- Fixed Inspector Window being refreshed all the time when a PlayerInput component is present with Invoke Unity Events nofication mode chosen [ISXB-1448](https://issuetracker.unity3d.com/product/unity/issues/guid/ISXB-1448)
 - Fixed an issue where an action with a name containing a slash "/" could not be found via `InputActionAsset.FindAction(string,bool)`. [ISXB-1306](https://issuetracker.unity3d.com/product/unity/issues/guid/ISXB-1306).
 
 ## [1.14.0] - 2025-03-20