Vue 3: typed TestComponent on render function

Proposal: 

Change line 45 index.d.ts from:
```TypeScript 
export function render(
  TestComponent: any, // this makes me sad :sob:
  options?: RenderOptions,
): RenderResult
```

To:
```TypeScript 
export function render(
  TestComponent: new () => ComponentPublicInstance,
  options?: RenderOptions,
): RenderResult
```

