chore: update changelog

Author: a7medev

CHANGELOG.md

@@ -9,7 +9,7 @@
 ### Changed
 
 - Bump Instabug Android SDK to v13.4.1 ([#509](https://github.com/Instabug/Instabug-Flutter/pull/509)). [See release notes](https://github.com/Instabug/Instabug-Android/releases/tag/v13.4.0).
-- Bump Instabug iOS SDK to v13.4.0 ([#506](https://github.com/Instabug/Instabug-Flutter/pull/506)). [See release notes](https://github.com/Instabug/Instabug-iOS/releases/tag/13.4.0).
+- Bump Instabug iOS SDK to v13.4.1 ([#510](https://github.com/Instabug/Instabug-Flutter/pull/510)). See release notes for [13.4.0](https://github.com/Instabug/Instabug-iOS/releases/tag/13.4.0) and [13.4.1](https://github.com/Instabug/Instabug-iOS/releases/tag/13.4.1).
 
 ### Fixed