finish some TODOs. (backport #896)

[mergify]

Description

Minor update to complete TODOs.

Fixes # (issue)

Is this user-facing behavior change?

Did you use Generative AI?

Additional Information

---

This is an automatic backport of pull request #896 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of 4dcd184 has failed:

On branch mergify/bp/humble/pr-896
Your branch is up to date with 'origin/humble'.

You are currently cherry-picking commit 4dcd184.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   rmw_zenoh_cpp/src/detail/liveliness_utils.cpp
	modified:   rmw_zenoh_cpp/src/detail/rmw_node_data.cpp
	modified:   rmw_zenoh_cpp/src/rmw_zenoh.cpp

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   zenoh_security_tools/CMakeLists.txt
	both modified:   zenoh_security_tools/package.xml

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

[fujitatomoya]

Pulls: #905
Gist: https://gist.githubusercontent.com/fujitatomoya/cb51910b1586f99b93c237dc14b6eb41/raw/cfbb0029666c4c462ea2a435598f7ebc1f52462f/ros2.repos
BUILD args: --packages-above-and-dependencies rmw_zenoh_cpp zenoh_security_tools
TEST args: --packages-above rmw_zenoh_cpp zenoh_security_tools
ROS Distro: humble
Job: ci_launcher
ci_launcher ran: https://ci.ros2.org/job/ci_launcher/18113

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