Improve CI readability by labelling script steps

[nixpanic]

Describe the feature you'd like to have

Currently the CI jobs that run in Jenkins for each PR list shell commands for steps that are executed. These commands can be labelled with a short and understandable comment.

See containerized-tests as an example, and click on a job to check the different stages there.

What is the value to the end user? (why is it a priority?)

Developers will understand the CI jobs better.

How will we know we have a good solution? (acceptance criteria)

Looking at CI jobs in Jenkins will show useful comments in the top of the steps (new), with the commands when expanding the view (as currently done).

This improves the understandability of the *.groovy files in the ci/centos branch.

Additional context

Idea comes from noobaa/noobaa-core#6259

[stale[bot]]

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

[github-actions[bot]]

This issue has been automatically closed due to inactivity. Please re-open if this still requires investigation.

[MohitGupta12]

hey is this issue still open ?

[MohitGupta12]

i would like to contribute to this