Fix linter issues

Author: SerafimArts

src/Mapping/Reference/ReferencesResolver.php

@@ -100,7 +100,7 @@ private function formatUseStatements(array $uses): array
     /**
      * @param \ReflectionClass<object> $class
      */
-    private function fromCurrentNamespace(Name $name, \ReflectionClass $class): ?Name
+    private function fromCurrentNamespace(Name $name, \ReflectionClass $class): Name
     {
         // Replace "namespace\ClassName" sequences to current namespace of the class.
         $first = $name->getFirstPart();

src/Type/ClassType/ClassFromArrayType.php

@@ -52,6 +52,7 @@ public function match(mixed $value, RuntimeContext $context): ?MatchedResult
             default => $this->input->match($value, $context),
         };
 
+        /** @var MatchedResult<array<array-key, mixed>>|null */
         return $result?->if($this->matchRequiredProperties((array) $result->value, $context));
     }