fix: RequestValidateFacade Variable could not be converted to string

[TZK-]

This PR fixes a bug when RequestValidateFacade is parsing controller methods in specific context.

Given this exemple :

#[Group('ExampleGroup')]
#[ResponseFromApiResource(ExampleResource::class, ExampleModel::class, collection: true, paginate: 20)]
public function handle(Request $req, EnumType $type, int $val): ResourceCollection
{
    $modelType = match ($type) {
        EnumType::OPTION_A => ModelA::class,
    };

    // Ensure presence in DB or fail to 404
    $model = $modelType::findOrFail($val);

    return ExampleResource::collection($model);
}

When generating doc with artisan RequestValidateFacade will end in the exception

Object of class PhpParser\Node\Expr\Variable could not be converted to string

  at vendor/knuckleswtf/scribe/src/Extracting/Shared/ValidationRulesFinders/RequestValidateFacade.php:28
     24▕         }
     25▕ 
     26▕         if (
     27▕             $expr instanceof Node\Expr\StaticCall
  ➜  28▕             && in_array((string) $expr->class, ['Request', \Illuminate\Support\Facades\Request::class])
     29▕         ) {
     30▕             if ($expr->name->name == "validate") {
     31▕                 return $expr->args[0]->value;
     32▕             }

      +22 vendor frames

Because line 28 is calling toString method on $expr->class but it has no toString method in PhpParser\Node\Expr\Variable object. It is $model = $modelType::findOrFail($val); which causes the problem.

Thi PR ensure we check class name onto the right objects to avoid this bug.

[shalvah]

Thanks!

[TZK-]

Is it possible to draft a new release for this fix ?

[shalvah]

Coming later today