code: async function prepareElmRelease(config, context) {
    function exec(command) {
      context.logger.log(`Running: ${command}`);
      execSync(command, { shell: '/bin/bash' });
    }
  
    exec(`yarn elm diff`);
    exec(`yes | yarn elm bump`);
  }
docs: A semantic release "prepare" plugin to update elm-package.json