[BUG]: node-postgres client doesn't have end function

### What version of `drizzle-orm` are you using?

0.36.0

### What version of `drizzle-kit` are you using?

0.27.1

### Describe the Bug

Give this code

```ts
import { drizzle } from "drizzle-orm/node-postgres";

export const db = await drizzle({
schema: schema,
connection: {
// ...
},
});
```

In tests i need to close the connection but there's no function called `end` in `db.$client.end()`. It's only exposed when manually creating `pg` Pool. Drizzle is not creating pool by itself?

### Expected behavior

It should expose `end` function

### Environment & setup

_No response_