Auth.useUserAccessGroup breaks with firebase-ios-sdk 7.8.0

[mikehardy]

firebase-ios-sdk 7.8.0 appears to have a break:

  1) auth()
       useUserAccessGroup()
         should return "null" on successful keychain implementation:
     NativeFirebaseError: [auth/keychain-error] An error occurred when accessing the keychain. The NSLocalizedFailureReasonErrorKey field in the NSError.userInfo dictionary will contain more information about the error encountered
      at FirebaseAuthModule.useUserAccessGroup (http://localhost:8081/index.bundle?platform=ios&dev=true&minify=false&sourceMapURL=true:137809:28)
      at Context.<anonymous> (/Users/runner/work/react-native-firebase/react-native-firebase/packages/auth/e2e/auth.e2e.js:1049:56)

Perhaps this? https://firebase.google.com/support/release-notes/ios#authentication / firebase/firebase-ios-sdk#7472

1. We are not printing the contents of NSError.userInfo dictionary so we do not have more information
2. It should not error, obviously

Originally posted by @mikehardy in #5005 (comment)

[mikehardy]

reproduced locally