`SubmitFunction` type error when using `async` callback in `use:enhance`

[alexiglesias93]

Describe the bug

Follow up to #7608, use:enhance throws a type error when using an async callback because the SubmitFunction interface does not expect any Promise-like return value.

Reproduction

Use an async function as the callback for any use:enhance action.

Logs

Type '({ cancel, data }: { action: URL; data: FormData; form: HTMLFormElement; controller: AbortController; cancel(): void; }) => Promise<void | (({ update, result }: { form: HTMLFormElement; action: URL; result: ActionResult<...>; update(options?: { ...; } | undefined): Promise<...>; }) => Promise<...>)>' is not assignable to type 'SubmitFunction<Record<string, any>, Record<string, any>>'.
  Type 'Promise<void | (({ update, result }: { form: HTMLFormElement; action: URL; result: ActionResult<Record<string, any>, Record<string, any>>; update(options?: { ...; } | undefined): Promise<...>; }) => Promise<...>)>' is not assignable to type 'void | ((opts: { form: HTMLFormElement; action: URL; result: ActionResult<Record<string, any>, Record<string, any>>; update(options?: { ...; } | undefined): Promise<...>; }) => void)'.

System Info

System:
    OS: Windows 10 10.0.22621
    CPU: (12) x64 Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz
    Memory: 15.90 GB / 31.75 GB
  Binaries:
    Node: 16.17.1 - C:\Program Files\nodejs\node.EXE
    npm: 8.9.0 - ~\AppData\Roaming\npm\npm.CMD
  Browsers:
    Edge: Spartan (44.22621.891.0), Chromium (107.0.1418.42)
    Internet Explorer: 11.0.22621.1
  npmPackages:
    @sveltejs/adapter-vercel: 1.0.0-next.81 => 1.0.0-next.81
    @sveltejs/kit: 1.0.0-next.544 => 1.0.0-next.544
    svelte: ^3.53.1 => 3.53.1
    vite: ^3.2.3 => 3.2.3

Severity

annoyance

Additional Information

No response

[dummdidumm]

We forgot to update the typings