message: fix apiVersion to null
diff: @@ -227,7 +227,7 @@ import { Router } from 'express';
  + // https://github.com/stripe/stripe-node#usage-with-typescript
  + const stripe = new Stripe(envConstants.STRIPE_SECRET, {
  -+ apiVersion: '2020-08-27',
  ++ apiVersion: null,
  + });
  export const api = Router();
  