PhanUnreferencedUseNormal reported in constructor promotion

[ennorehling]

Phan 5.4.2
php-ast version 1.1.0
PHP version used to run Phan: 8.2.7

On this code:

class FooData extends Spatie\LaravelData\Data {
    public function __construct(
        #[WithTransformer(DateTimeInterfaceTransformer::class)]
        public Carbon $birth_date
    ) {
    }

I get the message:

PhanAttributeWrongTarget Saw use of attribute \Spatie\LaravelData\Attributes\WithTransformer declared at vendor/spatie/laravel-data/src/Attributes/WithTransformer.php:10 which supports being declared on \Attribute::TARGET_CLASS|\Attribute::TARGET_PROPERTY but it was declared on public \Carbon\Carbon $birth_date which requires an attribute declared to support \Attribute::TARGET_PARAMETER

In PHP 8, this is functionally equivalent to

class FooData extends Spatie\LaravelData\Data {
    #[WithTransformer(DateTimeInterfaceTransformer::class)]
    public Carbon $birth_date;
    public function __construct(
        Carbon $birth_date
    ) {
         $this->birth_date = $birth_date;
    }

which does not report the error.