fix non standard interface locations. (#1186) (backport #1283)

[mergify]

Description

Replace #1205 because it was targeting kilted

Fixes # (issue)

Instead of relying on the broken get_interface_path function, I use the rosidl_interfaces resource directly. (see ros2/rosidl#935 (comment))

Fixes #1186

---

This is an automatic backport of pull request #1283 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of 7c6e097 has failed:

On branch mergify/bp/humble/pr-1283
Your branch is up to date with 'origin/humble'.

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Changes to be committed:
	modified:   ros2interface/test/test_cli.py

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   ros2interface/ros2interface/verb/show.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: #1291
Gist: https://gist.githubusercontent.com/ahcorde/88c53be9876122d2d3132931a63825af/raw/cd8fa8db4d9eefb926972aba9859bd7afc8ce37e/ros2.repos
BUILD args: --packages-above-and-dependencies ros2interface
TEST args: --packages-above ros2interface
ROS Distro: humble
Job: ci_launcher
ci_launcher ran: https://ci.ros2.org/job/ci_launcher/20284

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