fix: change api root statusCode to 200 (#12362)

apps/api/pages/api/index.ts

@@ -1,5 +1,5 @@
 import type { NextApiRequest, NextApiResponse } from "next";
 
 export default async function CalcomApi(_: NextApiRequest, res: NextApiResponse) {
-  res.status(201).json({ message: "Welcome to Cal.com API - docs are at https://developer.cal.com/api" });
+  res.status(200).json({ message: "Welcome to Cal.com API - docs are at https://developer.cal.com/api" });
 }