[BUG]: insert().values().execute() returns different value between planetscale mysql2

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

0.27.0

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

_No response_

### Describe the Bug

The following code:

```ts
const result = await database
.insert(table)
.values({ ... })
.execute();
```

returns different `result` between `drizzle-orm/mysql2` and `drizzle-orm/planetscale-serverless`.

With `drizzle-orm/mysql2`, `result` is an array and doesn't match the typescript definition:

```
[
ResultSetHeader {
fieldCount: 0,
affectedRows: 1,
insertId: 1110,
info: '',
serverStatus: 3,
warningStatus: 0
},
undefined
]
```

When using `drizzle-orm/planetscale-serverless`, accesing `result.insertId` works directly.

### Expected behavior

Both should return the same thing, probably `ExecutedQuery` or `ResultSetHeader`

### Environment & setup

_No response_