docs: update changelog

Author: uerceg

CHANGELOG.md

@@ -1,3 +1,9 @@
+### Version 5.4.0 (2nd May 2025)
+#### Added
+- Added support for configuring store information via the `ADJStoreInfo` object. You can now specify the store name and store app ID using `setStoreInfo` method on your `ADJConfig` instance. This enables the SDK to record the intended app store source during initialization.
+
+---
+
 ### Version 5.3.0 (16th April 2025)
 #### Added
 - Added ability to initialize the SDK for the first session in delayed mode. You can start the SDK in the delayed mode by calling the `enableFirstSessionDelay` method on your `ADJConfig` instance. To end the delay, make sure to call `endFirstSessionDelay` method of `Adjust` instance. For more details about this feature, refer to the [official documentation](https://dev.adjust.com/en/sdk/ios/features/first-session-delay).