Updated changelog

Author: ekcoh

Packages/com.unity.inputsystem/CHANGELOG.md

@@ -24,6 +24,7 @@ however, it has to be formatted properly to pass verification tests.
 - Fixed an issue in `RebindingUISample` preventing UI navigation without Keyboard and Mouse present.
 - Fixed an issue in `RebindActionUI` which resulted in active binding not being shown after a scene reload. ISXB-1588.
 - Fixed an issue in `GamepadIconExample` which resulted in icons for left and right triggers not being displayed after a rebind to the exact same controls. ISXB-1593.
+- Fixed an issue in `Keyboard` where the sub-script operator would return a `null` key control for the deprecated key `Key.IMESelected`. Now, an aliased `KeyControl`mapping to the IMESelected bit is returned for compability reasons. It is still strongly advised to not rely on this key since `IMESelected` bit isn't strictly a key and will be removed from the `Key` enumeration type in a future major revision. [ISXB-1541](https://issuetracker.unity3d.com/product/unity/issues/guid/ISXB-1541).
 
 ## [1.14.2] - 2025-08-05