Update Safari versions for FileReaderSync API (#11761)
Update Safari versions for FileReaderSync API (#11761)

This PR updates and corrects the real values for Safari (Desktop and iOS/iPadOS) for the `FileReaderSync` API, based upon results from the [mdn-bcd-collector](https://mdn-bcd-collector.appspot.com) project (v3.2.2).

Tests Used: https://mdn-bcd-collector.appspot.com/tests/api/FileReaderSync
chrisdavidmills/browser-compat-data,chrisdavidmills/browser-compat-data,mdn/browser-compat-data,mdn/browser-compat-data