Fix flow-bin registry URL in yarn.lock (#56719)

Summary:
Fixes the yarn.lock file where some references to registry.facebook.net leaked

## Changelog:
[Internal] -

Pull Request resolved: https://github.com/facebook/react-native/pull/56719

Test Plan: Tested that yarn install is now passing

Reviewed By: andrewdacenko, zeyap

Differential Revision: D104235290

Pulled By: cipolleschi

fbshipit-source-id: 6396f9d0318e665bb9ece4f12b494b4017dd948d