feat: Make array items required by default

Author: Robert Remenyi

src/Entity/Field.php

@@ -208,11 +208,7 @@ public function getPhpDocType(bool $allowNullable = true): string
 
         if ($this->isArray() && !$this->isArrayOfObjects()) {
             $arraySuffix = '[]';
-            $arrayItem = $this->getArrayItem();
-
-            $typeHint = $arrayItem->getType()->isMixed()
-                ? self::TYPE_MIXED
-                : $arrayItem->getPhpTypeHint();
+            $typeHint = $this->getArrayItem()->getPhpDocType();
         }
 
         return sprintf('%s%s%s', $typeHint, $arraySuffix, $nullableSuffix);

src/Input/Factory/FieldFactory.php

@@ -80,7 +80,7 @@ public function create(
                     $operationName,
                     lcfirst($itemReferenceName),
                     $sibling,
-                    $required,
+                    true,
                     $itemReferenceName
                 );
             } elseif (FieldType::isSpecificationTypeObject($type)) {