Intl.DateTimeFormat returns incorrect values on real iOS devices

Bug Description

Greetings 👋
We use Luxon in our react-native project for date management. When parsing dates and attempting to output the monthShort or weekdayShort components whilst using a real iOS device, we get null values back.

There is an open issue in Luxon stating that this is an implementation issue in Hermes as it works correctly for other JavaScript engines: https://github.com/moment/luxon/issues/1500

Hermes version: bundled with react-native
React Native version: 0.72.5
Platform: iOS
OS version: 16.6.1

Steps To Reproduce

Direct Hermes example:

https://github.com/moment/luxon/issues/1500#issuecomment-1709612387

Luxon example:

import { DateTime } from 'luxon'
...

  console.log(DateTime.now().month) // -> 10
  console.log(DateTime.now().monthShort) // -> null, but expected Oct or equivalent

Start by running the direct Hermes reproduction from the linked Luxon issue on a real iOS device, then compare the Intl.DateTimeFormat behavior with other JavaScript engines. Locate the relevant Hermes Intl implementation and tests; done means monthShort and weekdayShort return the expected values in the Luxon example rather than null.