feat(planning_debug_tools)!: replace tier4_debug_msgs with tier4_internal_debug_msgs

[mitsudome-r]

Description

This replaces tier4_debug_msgs with tier4_internal_debug_msgs.
This is a PR to resolve autowarefoundation/autoware#5580.

Interface Change

velocity_checker

Topic Type	Topic Name	Old Message Type	New Message Type
Pub	~/closest_speeds	tier4_debug_msgs/Float32MultiArrayStamped	autoware_internal_debug_msgs/Float32MultiArrayStamped
Sub	scenario + "/motion_velocity_smoother/distance_to_stopline	tier4_debug_msgs/Float32Stamped	autoware_internal_debug_msgs/Float32Stamped

processing_time_checker

Topic Type	Topic Name	Old Message Type	New Message Type
Sub	topic that ends with processing_time_ms	tier4_debug_msgs/Float64Stamped	autoware_internal_debug_msgs/Float64Stamped

How was this PR tested?

I have confirmed that the topics are updated.

velocity_checker:

ros2 run planning_debug_tools closest_velocity_checker.py

processing_time_checker:

ros2 run planning_debug_tools processing_time_checker.py

Notes for reviewers

None.

Effects on system behavior

None.

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