Fix accepted stage type in FluentFactoryTrait

Author: GromNaN

generator/src/FluentStageFactoryGenerator.php

@@ -48,7 +48,7 @@ private function createFluentFactoryTrait(GeneratorDefinition $definition): PhpN
 
         $trait->addProperty('pipeline')
             ->setType('array')
-            ->setComment('@var list<StageInterface>')
+            ->setComment('@var list<StageInterface|array<string,mixed>|stdClass>')
             ->setValue([]);
         $trait->addMethod('getPipeline')
             ->setReturnType(Pipeline::class)