Release v12.1.0

• Bumps Instabug iOS SDK to v12.1.0
• Bumps Instabug Android SDK to v12.1.0

Changed

• Add the new repro steps configuration API Instabug.setReproStepsConfig
• Remove deprecated APIs Instabug.setDebugEnabled in favour of debugLogsLevel property of Instabug.init.
• Adds the new Instabug.init API to start the SDK as follows:

  Instabug.init({
    token: '<APP_TOKEN>',
    invocationEvents: [BugReporting.invocationEvents.button],
    debugLogsLevel: ArgsRegistry.logLeve.verbose,
  });