Publish collision points for debug purposes (backport #3879)

[mergify]

This is an automatic backport of pull request #3879 done by Mergify.
Cherry-pick of c0fd78f has failed:

On branch mergify/bp/humble/pr-3879
Your branch is up to date with 'origin/humble'.

You are currently cherry-picking commit c0fd78fc.
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Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	both modified:   nav2_collision_monitor/CMakeLists.txt
	deleted by us:   nav2_collision_monitor/include/nav2_collision_monitor/collision_detector_node.hpp
	both modified:   nav2_collision_monitor/include/nav2_collision_monitor/collision_monitor_node.hpp
	both modified:   nav2_collision_monitor/package.xml
	deleted by us:   nav2_collision_monitor/src/collision_detector_node.cpp
	both modified:   nav2_collision_monitor/src/collision_monitor_node.cpp
	deleted by us:   nav2_collision_monitor/test/collision_detector_node_test.cpp
	both modified:   nav2_collision_monitor/test/collision_monitor_node_test.cpp

no changes added to commit (use "git add" and/or "git commit -a")

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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[mergify]

@mergify[bot], all pull requests must be targeted towards the main development branch.
Once merged into main, it is possible to backport to @humble, but it must be in main
to have these changes reflected into new distributions.