[ios] Fix expo-notifications initial notification not being delivered…

[sjchmiela]

to expo-notifications

Checklist

• [x] I've read the Contribution Guidelines.
• [x] I've updated the CHANGELOG if necessary.
• [x] I've ensured the unit and smoke tests are still passing - either by running yarn test:unit and yarn test:smoke:[ios|android] or by checking the appropriate CircleCI builds' statuses.
• [x] I've manually tested whether the changes I made work as expected.

Motivation and Context

Adds https://github.com/expo/expo/commit/0e0bbdd7b45b3e8f8725bcd831263f049c0aa16a and https://github.com/expo/expo/commit/c49a0464aef589dc9dd691cea78313d91959d64c fixing long-standing notifications bug.