Fix compile issues under U22

source/RobotAPI/libraries/armem/server/wm/detail/Prediction.h

@@ -283,7 +283,7 @@ namespace armarx::armem::server::wm::detail
             // Get iterator to first entry of child ID (memory).
             std::vector<std::string> childItems = child.getItems();
 
-            size_t index = parentLength;
+            int index = parentLength;
             ARMARX_CHECK_FITS_SIZE(index, childItems.size());
 
             return childItems[index];

source/RobotAPI/libraries/armem_robot_state/common/localization/TransformHelper.h

@@ -22,6 +22,7 @@
 #pragma once
 
 #include <vector>
+#include <optional>
 
 #include <Eigen/Core>
 #include <Eigen/Geometry>