Added missing headers to `URDFPrefabMaker.h` (#218)

Signed-off-by: Michał Pełka <[email protected]>

Gems/ROS2/Code/Source/RobotImporter/URDF/URDFPrefabMaker.h

@@ -14,6 +14,8 @@
 #include "UrdfParser.h"
 #include "VisualsMaker.h"
 #include <AzCore/Component/EntityId.h>
+#include <AzCore/std/string/string.h>
+#include <AzCore/std/containers/map.h>
 #include <AzCore/std/smart_ptr/make_shared.h>
 #include <AzCore/std/smart_ptr/shared_ptr.h>
 #include <AzToolsFramework/Prefab/PrefabPublicInterface.h>