fix: Screen reader event name on RNTester AccessibilityExample

[gabrieldonadel]

Summary

Fix an issue in the AccessibilityExample on RNTester where the Screen Reader item would listen for the reduceMotionChanged event instead of the screenReaderChanged event

Changelog

[General] [Fixed] - Fix screen reader event name on RNTester AccessibilityExample

Test Plan

1. Build iOS app
2. Navigate to the Accessibility page
3. Switch over to settings and change VoiceOver at Settings>Accessibility>VoiceOver>VoiceOver
4. Switch back to the app and see the results

voice-over.mp4

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
ios	-	universal	n/a	--

Base commit: 5fa3807
Branch: main

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
android	hermes	arm64-v8a	8,290,858	+0
android	hermes	armeabi-v7a	7,628,205	-6
android	hermes	x86	8,764,064	+6
android	hermes	x86_64	8,700,923	-3
android	jsc	arm64-v8a	9,678,238	+3
android	jsc	armeabi-v7a	8,672,272	+6
android	jsc	x86	9,636,943	+7
android	jsc	x86_64	10,231,411	+5

Base commit: 5fa3807
Branch: main

[facebook-github-bot]

@cortinico has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

[react-native-bot]

This pull request was successfully merged by @gabrieldonadel in b276b73.

^{When will my fix make it into a release? | Upcoming Releases}