completely shutdown dyn_params_handler_ (s)

[GoesM]

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Basic Info

Info	Please fill out this column
Ticket(s) this addresses	#4496
Primary OS tested on	(Ubuntu, MacOS, Windows)
Robotic platform tested on	(Steve's Robot, gazebo simulation of Tally, hardware turtlebot)
Does this PR contain AI generated software?	(No; Yes and it is marked inline in the code)

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Description of contribution in a few bullet points

result from experiments In amcl node, the following code could completely shutdown the callback threads properly:

  // shutdown and reset dynamic parameter handler
  remove_on_set_parameters_callback(dyn_params_handler_.get());
  dyn_params_handler_.reset();

Future work that may be required in bullet points

Here's a todo list for my future work, I think I'd check out package by package:

• [x] nav2_amcl (fixed)
• [x] nav2_behavior_tree (no dynamic_param)
• [x] nav2_behaviors (no dynamic_param)
• [x] nav2_bringup (no dynamic_param)
• [x] nav2_bt_navigator
• [ ] nav2_collision_monitor
• [ ] nav2_common
• [ ] nav2_constrained_smoother
• [ ] nav2_controller
• [ ] nav2_core
• [ ] nav2_costmap_2d
• [ ] nav2_docking
• [ ] nav2_dwb_controller
• [ ] nav2_graceful_controller
• [ ] nav2_lifecycle_manager
• [ ] nav2_map_server
• [ ] nav2_mppi_controller
• [x] nav2_msgs (no dynamic param)
• [ ] nav2_navfn_planner
• [ ] nav2_planner
• [ ] nav2_regulated_pure_pursuit_controller
• [ ] nav2_rotation_shim_controller
• [ ] nav2_rviz_plugins
• [ ] nav2_simple_commander
• [ ] nav2_smac_planner
• [ ] nav2_smoother
• [ ] nav2_system_tests
• [ ] nav2_theta_star_planner
• [ ] nav2_util
• [ ] nav2_velocity_smoother
• [ ] nav2_voxel_grid
• [ ] nav2_waypoint_follower

This PR is opened as a demo. If there are no issues here, I will quickly check and correct all remaining packages, and then update this PR in one go.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Files	Coverage Δ
nav2_amcl/src/amcl_node.cpp	70.65% <100.00%> (+0.03%)	:arrow_up:

... and 1 file with indirect coverage changes