serial4 is interpreted as Any

Inconsistent behavior of psql types.

```sql
CREATE TABLE example(
  id SERIAL4 PRIMARY KEY NOT NULL
);

-- name: test :many
SELECT id FROM example;
```

The generated table model is
```kotlin
data class Example(
  val id: Any
)
```

Would expect the type to be Int instead of Any.

Maybe affects other serial or float types I have not tested this yet.
For e.g. int4 works ok.