Update CHANGELOG.md for Flutter 3.41.9 (#185755)

Add release notes for Flutter version 3.41.9.

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diff --git a/CHANGELOG.md b/CHANGELOG.md
index a399052..d03123f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -32,6 +32,9 @@
 
 ## Flutter 3.41 Changes
 
+### [3.41.9](https://github.com/flutter/flutter/releases/tag/3.41.9)
+- [flutter/185621](https://github.com/flutter/flutter/pull/185621) Fixes a potential integer overflow that can happen when handling some animated PNG files.
+
 ### [3.41.8](https://github.com/flutter/flutter/releases/tag/3.41.8)
 - [flutter/185150](https://github.com/flutter/flutter/issues/185150) When using profile mode on a physical iOS device, the app may fail to connect to the Dart VM.