Feat: Accept Builder argument

[mpyw]

We now accept a Builder argument to prevent common mistakes.

Comment::query()->hasByNonDependentSubquery(
    'post',
    function (Relation $query) {
        // $query is a Relation instance
        $query->onlyTrashed();
    }
)->withTrashed()

Comment::query()->hasByNonDependentSubquery(
    'post',
    function ($query) {
        // $query is a Relation instance
        $query->onlyTrashed();
    }
)->withTrashed()

Comment::query()->hasByNonDependentSubquery(
    'post',
    function (Builder $query) {
        // $query is a Builder instance! (Previously it triggered an error)
        $query->onlyTrashed();
    }
)->withTrashed()