fix rctimage observer crash when unloading with events in-flight

[ryanfrawley]

Summary:
Resolves a rare native iOS ImageResponseObserverCoordinator crash that would result from a use-after-free in the observer.

Original Error

EXC_BAD_ACCESS / KERN_INVALID_ADDRESS in ImageResponseObserverCoordinator::nativeImageResponseProgress

Differential Revision: D90552795

[meta-codesync]

@ryanfrawley has exported this pull request. If you are a Meta employee, you can view the originating Diff in D90552795.

[meta-codesync]

This pull request has been merged in 3b46755.

[react-native-bot]

This pull request was successfully merged by Ryan Frawley in 3b46755

^{When will my fix make it into a release? | How to file a pick request?}

[hoangman1108]

when try to patch react-native@0.81.5. after patched and build.
throw

Error building the application - see the log above
Error: The "Run fastlane" step failed because of an error in the Xcode build process. We automatically detected following errors in your Xcode build logs:
- no viable conversion from 'RCTImageResponseObserverProxy' to 'const std::shared_ptr<const ImageResponseObserver>'
- no viable conversion from 'RCTImageResponseObserverProxy' to 'std::shared_ptr<const ImageResponseObserver>'
Refer to "Xcode Logs" below for additional, more detailed logs.

the error relate to react-native-svg@15.12.1
node_modules/react-native-svg/apple/Elements/RNSVGImage.mm