message: use version from lerna.json or fallback to 0.1.0
diff: @@ -237,7 +237,9 @@ export default async (cmd: Command) => {
  ? paths.resolveTargetRoot('plugins', answers.id)
  : paths.resolveTargetRoot(answers.id);
  const ownerIds = parseOwnerIds(answers.owner);
  - const version = backstageVersion;
  + const { version } = isMonoRepo
  + ? await fs.readJson(paths.resolveTargetRoot('lerna.json'))
  + : { version: '0.1.0' };
  Task.log();
  Task.log('Creating the plugin...');
  