* first step to implementing solution for #3074
* back to iOS 12.2 for simulator
* handle keychain error
* test for iOS 'useUserAccessGroup' function
* clean up keychain after setting it
* Update packages/auth/ios/RNFBAuth/RNFBAuthModule.m
* Update packages/auth/lib/index.d.ts
Co-authored-by: Mike Diarmid <mike.diarmid@gmail.com>
- [android] upgrade to Android X
- [android] upgrade gradle wrapper to v5.4.1
- [android][ios][tests] remove manual packages & enable auto-linking
- [tests][internal] upgrade tests project to RN 60
- [ios] temporarily remove framework support in pods - broken in RN 60 - see https://github.com/facebook/react-native/issues/25349
- [linting] switch to use rn community linting rules