update react-native-reanimated to 2.3.1

[mahamaad]

update react-native-reanimated to 2.3.1

[peacechen]

Thanks @mahamaad .
Are there any breaking changes in react-native-reanimated 2.x? It's a major version bump.

[mahamaad]

@peacechen Some things have changed but there is no problem in this package just updating the package.json works without problems.
Updating is important because it will cause problems and the app will not run if the version of this package is old and the react-native-reanimated version is new

• This type of error is caused by version incompatibility
  Animated node with ID 2 already exists software-mansion/react-native-reanimated#1072

[peacechen]

@mahamaad PR #13 upgraded reanimated to 2.8.0.
Another user reported problems with reanimated 2.9.1. Would you mind testing that version to see if it works properly? I'd like to know whether to pin it to a lower version.