Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/32731
Changelog: [internal] Trigger codegen discovery script when building React-Codegen so that users won't have to run pod install every time modifying fabric / turbomodule library.
Reviewed By: cortinico
Differential Revision: D32979871
fbshipit-source-id: 18550b6b010a9a2b8b7513aaa3b6a7322ea83eff