Ship zombie info

[Lee-W]

This PR depends on #32646 and adds scheduler log to task log if the task is detected as a zombie task.

How to test it

1. Create a long-running task (e.g., BashOperator with bash_command="sleep 600")
2. Set scheduler_zombie_task_threshold as 1
3. Run airflow with breeze
4. Trigger the DAG
5. Kill work

---

^ Add meaningful description above

Read the Pull Request Guidelines for more information.
In case of fundamental code changes, an Airflow Improvement Proposal (AIP) is needed.
In case of a new dependency, check compliance with the ASF 3rd Party License Policy.
In case of backwards incompatible changes please leave a note in a newsfragment file, named {pr_number}.significant.rst or {issue_number}.significant.rst, in newsfragments.

[RNHTTR]

Thoughts on somehow linking to docs on zombies in the message? Or even just explaining in the message some things that might cause zombies? An Airflow end-user might not know what a zombie is.

[pankajkoti]

Thoughts on somehow linking to docs on zombies in the message? Or even just explaining in the message some things that might cause zombies? An Airflow end-user might not know what a zombie is.

yes makes sense.

We can add "Refer: https://airflow.apache.org/docs/apache-airflow/stable/core-concepts/tasks.html#zombie-undead-tasks"

[pankajkoti]

I am also thinking perhaps we need to enhance the documentation to include possible scenarios when tasks can become zombies based on all information we have observed so far.

[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed in 5 days if no further activity occurs. Thank you for your contributions.

[pankajkoti]

@RNHTTR this is how the message appears upon zombie detections. Please check if you would like to open a PR to modify the message or have something additional to add in the message. I will merge this one for now

cc: @dstandish @phanikumv @kaxil

[phanikumv]

Have we improved doumentation as mentioned in earlier comments?

#32693 (comment)

[pankajkoti]

Have we improved doumentation as mentioned in earlier comments?

#32693 (comment)

Yes, this can come up in a separate PR. I have created a good-first issue for this #35698