UIScreen.main will be deprecated in a future version of iOS

there are UIScreen.main that will be deprecated.

```swift
//  LottieAnimationViewBase.swift
  var screenScale: CGFloat {
    #if os(iOS) || os(tvOS)
    UIScreen.main.scale
    #else // if os(visionOS)
    // We intentionally don't check `#if os(visionOS)`, because that emits
    // a warning when building on Xcode 14 and earlier.
    1.0
    #endif
  }
```