fix(tier4_localization_rviz_plugin): fix constVariableReference (autowarefoundation#8838)

fix:constVariableReference

Signed-off-by: kobayu858 <yutaro.kobayashi@tier4.jp>

Author: kobayu858

common/tier4_localization_rviz_plugin/src/pose_history_footprint/display.cpp

@@ -211,7 +211,7 @@ void PoseHistoryFootprint::update_footprint()
 
   const float offset_from_baselink = property_offset_->getFloat();
 
-  for (auto & point_idx : history_) {
+  for (const auto & point_idx : history_) {
     const auto & pose = point_idx->pose;
     /*
      * Footprint