fix(typescript): fix query typings

[manakuro]

What:
Fix Query typings.

Why:
Typings error occurred because of incompatible with Query interface.

How:

• Use NativeTestInstance type for returning Query interface.
• Remove NativeTestInstance type from testRenderer argument in Query interface.
• Fix ReactTestInstance.getProps type.

Checklist:

• Documentation added to the
  docs site
• Typescript definitions updated
• Tests
• Ready to be merged

Results:

$ yarn tsc                                                                                                                                                                          
yarn run v1.15.2
$ /Users/me/workspace/react-native/react-native-sample/node_modules/.bin/tsc
✨  Done in 30.35s.