Update CHANGELOG with missing Flutter 3.44.9 and 3.44.8 changes

Follow up from https://github.com/flutter/flutter/pull/191016
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 16249b5..3837476 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -32,6 +32,13 @@
 
 ## Flutter 3.44 Changes
 
+### [3.44.9](https://github.com/flutter/flutter/releases/tag/3.44.9)
+- [flutter/186366](https://github.com/flutter/flutter/issues/186366) When debugging an iOS app, if the app crashes, the Flutter CLI and tests that crash will hang.
+
+### [3.44.8](https://github.com/flutter/flutter/releases/tag/3.44.8)
+- [flutter/188346](https://github.com/flutter/flutter/issues/188346) When building on macOS or iOS using the Xcode 27 toolchain, the build will fail due to a lipo verification error.
+- [flutter/184286](https://github.com/flutter/flutter/issues/184286) On some devices with vendor-modified Android 11 ROMs, `AccessibilityBridge.java` field fails to resolve.
+
 ### [3.44.7](https://github.com/flutter/flutter/releases/tag/3.44.7)
 - [flutter/188161](https://github.com/flutter/flutter/issues/188161) Fixes a resource leak that sometimes caused crashes when using external textures on some GPUs (such as Arm Mali).