feat: add default value visibility for directories

Author: maxhelias

src/Adapter/AdapterDefinitionFactory.php

@@ -40,7 +40,7 @@ public function __construct()
         ];
     }
 
-    public function createDefinition(string $name, array $options, ?string $defaultVisibilityForDirectories): ?Definition
+    public function createDefinition(string $name, array $options, ?string $defaultVisibilityForDirectories = null): ?Definition
     {
         foreach ($this->builders as $builder) {
             if ($builder->getName() === $name) {

tests/Adapter/AdapterDefinitionFactoryTest.php

@@ -34,7 +34,7 @@ public function testCreateDefinition($name, $options)
     {
         $factory = new AdapterDefinitionFactory();
 
-        $definition = $factory->createDefinition($name, $options, null);
+        $definition = $factory->createDefinition($name, $options);
         $this->assertInstanceOf(Definition::class, $definition);
     }
 }