fix(react-native): fix sourcemaps for iOS builds with hermes

[andreybutov]

Status

READY

Description

This PR fixes sourcemap generation for iOS builds with hermes enabled. Related issue: #1182

Steps to Test or Reproduce

• From a test React Native app (0.72+, to make sure hermes is the default engine), install the Honeybadger RN library, initialize with your project API key and a unique revision string.

  Honeybadger.configure({ 
    apiKey: '<your project API key>, 
    revision: 'test-revision-1',
    debug: true,
    environment: 'production'
  });

• Implement some code that will cause an exception. throw new Error("test") on a button press will work fine.
• Run the app in release mode. npx react-native run-ios --mode Release
• Generate and upload sourcemaps to Honeybadger. Make sure the --revision argument matches the revision in the initialization code. npx honeybadger-upload-sourcemaps --apiKey <your api key> --revision test-revision-1
• Cause the crash in the app.
• The Honeybadger dashboard should show the crash with the top-most backtrace line pointing to the correct file and line. The function name might not be correctly reflected, depending on how/where the error was thrown, but the file and line should be accurate.

[BethanyBerkowitz]

It works!