Summary:
Related to #22100
Enhance Flow types for RefreshControl specifying `onRefresh` props type.
There are still 2 `any` left using `requireNativeComponent` that need to be addressed to turn Flow to strict mode.
I went through `RCTRefreshControl` and `AndroidSwipeRefreshLayout` classes to understand where this method came from.
- All flow tests succeed.
[GENERAL] [ENHANCEMENT] [RefreshControl.js] - Flow onRefresh type
Pull Request resolved: https://github.com/facebook/react-native/pull/22119
Differential Revision: D12919764
Pulled By: TheSavior
fbshipit-source-id: 9ba675be8dbce77d77972acb904fc13c68524831