Reference: https://www.npmjs.com/package/cors#configuring-cors-asynchronously

Related: DefinitelyTyped/DefinitelyTyped@54a59cd

With the engine based on µWebSockets.js (introduced in version 6.1.0),
a huge request body split in multiple chunks would throw the following
error:

> node:buffer:254
>   TypedArrayPrototypeSet(target, source, targetStart);
>   ^
>
> TypeError: Cannot perform %TypedArray%.prototype.set on a detached ArrayBuffer
>     at Buffer.set (<anonymous>)
>     at _copyActual (node:buffer:254:3)
> node:buffer:254
>   TypedArrayPrototypeSet(target, source, targetStart);
>   ^
>
> TypeError: Cannot perform %TypedArray%.prototype.set on a detached ArrayBuffer
>     at Buffer.set (<anonymous>)
>     at _copyActual (node:buffer:254:3)
>     at Function.concat (node:buffer:562:12)
>     at onEnd (.../node_modules/engine.io/build/transports-uws/polling.js:126:32)
>     at .../node_modules/engine.io/build/transports-uws/polling.js:143:17

Note: µWebSockets.js does not currently support chunked transfer
encoding.

In order to make sure the types added in [1] are included.

Related:

- #639
- #640

[1]: socketio/engine.io-parser@ad5bd7d

Diff: 6.1.2...6.1.3