fix incorrect changelog

Author: denrase

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## Unreleased
+
+### Features
+
+- Use PlatformDispatcher.onError in Flutter 3.3 ([#1039](https://github.com/getsentry/sentry-dart/pull/1039))
+
 ## 6.12.1
 
 ### Dependencies
@@ -10,10 +16,6 @@
 
 ## 6.12.0
 
-### Features
-
-- Use PlatformDispatcher.onError in Flutter 3.3 ([#1039](https://github.com/getsentry/sentry-dart/pull/1039))
-
 ### Fixes
 
 - Handle traces sampler exception ([#1040](https://github.com/getsentry/sentry-dart/pull/1040))