Add missing mock for AccessibilityInfo

[estevaolucas]

Summary

I've realized after #23839 got merged, that AccessibilityInfo doesn't have a jest mock the same way as the other frameworks do.

Changelog

This PR adds the testing mock for AccessibilityInfo.

Test Plan

N/A

[pull-bot]

Messages

📖

📋 Changelog Format - Did you include a Changelog? A changelog entry has the following format: [CATEGORY] [TYPE] - Message. CATEGORY may be: General iOS Android TYPE may be: Added, for new features. Changed, for changes in existing functionality. Deprecated, for soon-to-be removed features. Removed, for now removed features. Fixed, for any bug fixes. Security, in case of vulnerabilities. MESSAGE may answer "what and why" on a feature level. Use this to briefly tell React Native users about notable changes.

Generated by 🚫 dangerJS against 91fc695

[cpojer]

Oh nice, thank you!

[facebook-github-bot]

@cpojer is landing this pull request. If you are a Facebook employee, you can view this diff on Phabricator.

[react-native-bot]

This pull request was successfully merged by @elucaswork in 65a8a51.

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