Run RMW tests in isolation and call shutdown on error (backport #2460)

[mergify]

Description

Addresses parts of # ros2/rmw_zenoh#1016

Is this user-facing behavior change?

No

Did you use Generative AI?

Yes, Claude Opus 4.8 to identify which tests need to be updated.

Additional Information

---

This is an automatic backport of pull request #2460 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of 2777970 has failed:

On branch mergify/bp/kilted/pr-2460
Your branch is up to date with 'origin/kilted'.

You are currently cherry-picking commit 2777970.
  (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:   rosbag2_py/CMakeLists.txt
	modified:   rosbag2_tests/CMakeLists.txt
	modified:   rosbag2_tests/package.xml

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   rosbag2_py/src/rosbag2_py/_transport.cpp

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

[ahcorde]

Pulls: #2462
Gist: https://gist.githubusercontent.com/ahcorde/2989621a2b6bbe15a8f2909ae1251dae/raw/0e76dd0247879791a0174f6861c711b88770bdd4/ros2.repos
BUILD args: --packages-above-and-dependencies rosbag2_py rosbag2_tests --cmake-args -DRMW_IMPLEMENTATION=rmw_zenoh_cpp
TEST args: --packages-above rosbag2_py rosbag2_tests
ROS Distro: kilted
Job: ci_launcher
ci_launcher ran: https://ci.ros2.org/job/ci_launcher/19951

• Linux
• Linux-aarch64
• Linux-rhel
• Windows

[Yadunund]

@ahcorde did you plan on opening a different PR with conflicts resolved?