Mention Jupyter Notebook early in the ros2_tracing analysis tutorial (backport #6764)

[mergify]

Description

Suggested here: ros2/lyrical_tutorial_party#1566 (comment)

Did you use Generative AI?

Additional Information

---

This is an automatic backport of pull request #6764 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of baf33b0 has failed:

On branch mergify/bp/humble/pr-6764
Your branch is up to date with 'origin/humble'.

You are currently cherry-picking commit baf33b04.
  (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)

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   source/Tutorials/Advanced/ROS2-Tracing-Trace-and-Analyze.rst

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/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[fujitatomoya]

@christophebedard i need your approval since i added the fix.

[github-actions]

HTML artifacts: https://github.com/ros2/ros2_documentation/actions/runs/25899273049/artifacts/7009815050.

To view the resulting site:

1. Click on the above link to download the artifacts archive
2. Extract it
3. Open html-artifacts-6770/index.html in your favorite browser