Fix compatibility

Author: alexander-schranz

src/PHPCR/Shell/Serializer/NodeNormalizer.php

@@ -39,14 +39,21 @@ public function getNotes()
         return $this->notes;
     }
 
+    public function getSupportedTypes(?string $format): array
+    {
+        return [
+            NodeInterface::class => true,
+        ];
+    }
+
     /**
      * {@inheritdoc}
      */
-    public function normalize($node, $format = null, array $context = []): ArrayObject|array|string|int|float|bool|null
+    public function normalize($object, $format = null, array $context = []): array
     {
         $res = [];
 
-        foreach ($node->getProperties() as $property) {
+        foreach ($object->getProperties() as $property) {
             if (false === $this->isPropertyEditable($property)) {
                 continue;
             }
@@ -82,13 +89,6 @@ public function normalize($node, $format = null, array $context = []): ArrayObje
         return $res;
     }
 
-    public function getSupportedTypes(?string $format): array
-    {
-        return [
-            NodeInterface::class => true,
-        ];
-    }
-
     /**
      * {@inheritdoc}
      */

src/PHPCR/Shell/Serializer/YamlEncoder.php

@@ -33,7 +33,7 @@ public function encode($data, $format, array $context = []): string
         return Yaml::dump($data);
     }
 
-    public function decode($data, $format, array $context = [])
+    public function decode($data, $format, array $context = []): mixed
     {
         $arr = Yaml::parse($data);