chore: update changelog

Author: a7medev

CHANGELOG.md

@@ -5,6 +5,7 @@
 ### Changed
 
 - Bump Instabug Android SDK to v13.2.0 ([#482](https://github.com/Instabug/Instabug-Flutter/pull/482)). [See release notes](https://github.com/Instabug/Instabug-Android/releases/tag/v13.2.0).
+- Bump Instabug iOS SDK to v13.2.0 ([#483](https://github.com/Instabug/Instabug-Flutter/pull/483)). [See release notes](https://github.com/Instabug/Instabug-iOS/releases/tag/13.2.0).
 
 ## [13.1.1](https://github.com/Instabug/Instabug-Flutter/compare/v13.0.0...dev) (Jun,11 2024)