message: add async to stepAsync to squelch the linter
diff: @@ -268,7 +268,7 @@ export class ECSqlStatement implements IterableIterator<any>, IDisposable {
  public step(): DbResult { return this._stmt!.step(); }
  /** @internal added this back in for testing purposes */
  - public stepAsync(): Promise<DbResult> {
  + public async stepAsync(): Promise<DbResult> {
  return new Promise((resolve, _reject) => {
  this._stmt!.stepAsync(resolve);
  });
  