[13.x] Check traits in resolveClassAttribute

[jackbayliss]

This is the exact same as I did here #60519

This means queue attributes 🤝 model attributes (We are same same but different)

This essentially means, traits can carry model attributes which means we can put attributes on a trait, and reuse the trait.

This only checks traits on the current class in the hierarchy same as the other PR

Nice for package maintainers, or teams using traits.

#[Connection('warehouse')]
trait UsesWarehouse
{
  // scopes etc... that may be shared
}

class Product extends Model
{
    use UsesWarehouse;
}

class StockTransfer extends Model
{
    use UsesWarehouse;
}

I'm completely fine if you close this, just thought I'd try bring the same behaviour as queues to models for the attributes 🫡

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