Bug: type casting int|float always returns an int

## Detailed description

When type casting a property as float|int the property's value is changed to an int.

```
/**
* @property-read float|int $amount
*/
class AgencyFeeData{}

...

$dto = AgencyFeeData::make(['amount' => 123.123]);

// expected
$dto->amount // 123.123

//actual
$dto->amount // 123
```