Add @getsentry to React Native incubating partners list (#38091)

Summary:
Add getsentry to the React Native incubating partners list.

If you are interested in Sentry's work in the RN Core, see the ReactWG Post -> [Better Error Reporting for the New Architecture
](https://github.com/reactwg/react-native-new-architecture/discussions/122)
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[Internal] - Add getsentry to the React Native incubating partners list

Pull Request resolved: https://github.com/facebook/react-native/pull/38091

Test Plan: None - Docs update

Reviewed By: cortinico, sammy-SC

Differential Revision: D47060764

Pulled By: blakef

fbshipit-source-id: 9a42a5d9ff9012eb4ec7ffb04fac850c750f3c65