message: Create versions.json together with versions.js
  Simplifies generating a list of documentation items on the `documentation` side.
diff: +
  /* Copyright (c) 2020 SAP SE or an SAP affiliate company. All rights reserved. */
  const { execSync } = require('child_process');
  const fs = require('fs');
  @@ -116,6 +117,11 @@ function writeVersions() {
  `export default ${jsonStringify(apiVersions)}`,
  'utf8'
  );
  + fs.writeFileSync(
  + path.resolve('docs', 'api', 'versions.json'),
  + `${jsonStringify(apiVersions)}`,
  + 'utf8'
  + );
  }
  function validateLogs(generationLogs) {
  