Update deprecation notice for FieldOperatorApplication::plan

Author: HansRobo

external/concealer/include/concealer/field_operator_application.hpp

@@ -163,8 +163,8 @@ struct FieldOperatorApplication : public rclcpp::Node
   auto initialize(const geometry_msgs::msg::Pose &) -> void;
 
   [[deprecated(
-    "This function was deprecated since version 16.5.0 (released on 20250602). It will be deleted "
-    "after a half-year transition period (~20251202). Please use other overloads instead.")]] auto
+    "This function was deprecated since version 16.5.0 (released on 20250603). It will be deleted "
+    "after a half-year transition period (~20251203). Please use other overloads instead.")]] auto
   plan(const std::vector<geometry_msgs::msg::PoseStamped> &, const bool) -> void;
 
 #if __has_include(<autoware_adapi_v1_msgs/msg/route_option.hpp>)