Adapt tests to Zenoh (backport #988)

[mergify]

Related with ros2/rmw_zenoh#523

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This is an automatic backport of pull request #988 done by Mergify.

[mergify]

Cherry-pick of 31d814d has failed:

On branch mergify/bp/jazzy/pr-988
Your branch is up to date with 'origin/jazzy'.

You are currently cherry-picking commit 31d814d.
  (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:   ros2topic/test/test_use_sim_time.py

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	deleted by us:   ros2topic/test/test_bw_delay_hz.py
	both modified:   ros2topic/test/test_echo_pub.py

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: #991
Gist: https://gist.githubusercontent.com/ahcorde/6e641aa2720fdb8fd7d20900f9e5c2cc/raw/5cdce26a466bea141246cdc41eb41a335b029272/ros2.repos
BUILD args: --packages-up-to ros2topic --packages-above-and-dependencies ros2topic
TEST args: --packages-select ros2topic --packages-above ros2topic
ROS Distro: jazzy
Job: ci_launcher
ci_launcher ran: https://ci.ros2.org/job/ci_launcher/15430

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

[ahcorde]

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