Jiachi LiuandGitHub ac41e473b4 test: update component to async to avoid TS error in build (#67557) ...

### What

Change the shared test component to async since it's used in both
server/client components. Found this error while testing other stuff,
it's because the async shared component is accidentally used in client
component page

```
===== TS errors =====

[Test Mode] ./app/client/edge/page.tsx:5:23
Type error: 'ErrorComponent' cannot be used as a JSX component.
  Its type '({ name }: { name: string; }) => Promise<any>' is not a valid JSX element type.
```

2024-07-08 13:03:43 +00:00

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client

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server

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component.tsx

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layout.tsx

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