docs: Add changelog entry for navigation span naming (#5982)

Author: alwx

CHANGELOG.md

@@ -12,6 +12,7 @@
 
 - Enable "Open Sentry" button in Playground for Expo apps ([#5947](https://github.com/getsentry/sentry-react-native/pull/5947))
 - Add `attachAllThreads` option to attach full stack traces for all threads to captured events on iOS ([#5960](https://github.com/getsentry/sentry-react-native/issues/5960))
+- Name navigation spans using dispatched action payload when `useDispatchedActionData` is enabled ([#5982](https://github.com/getsentry/sentry-react-native/pull/5982))
 
 ### Fixes