Revert "feat(static_obstacle_avoidance): update envelope polygon creation method (autowarefoundation#8551)"

This reverts commit 967f947.

Author: AkariNakano821

planning/behavior_path_planner/autoware_behavior_path_static_obstacle_avoidance_module/src/utils.cpp

@@ -22,7 +22,7 @@
 #include "autoware/behavior_path_static_obstacle_avoidance_module/utils.hpp"
 
 #include <Eigen/Dense>
-#include <autoware_lanelet2_extension/utility/message_conversion.hpp>
+#include <lanelet2_extension/utility/message_conversion.hpp>
 
 #include <boost/geometry/algorithms/buffer.hpp>
 #include <boost/geometry/algorithms/convex_hull.hpp>