TS target 2022 doesn't allow CancelablePromise as a return type in async functions

[akindo]

With a target of ES2022 in tsconfig.json, TypeScript v. 5.0.2 doesn't allow CancelablePromise as a return type in an async function:

async hello(): CancelablePromise<string> {
    return new CancelablePromise((resolve) => void resolve('hello'));
}

The error isn't present with a target of es5.

Thanks for any help. :)