[stable28] fix(cron): Log long running jobs

[backportbot[bot]]

Backport of #45804

Warning, This backport's changes differ from the original and might be incomplete ⚠️

Todo

• [x] Review and resolve any conflicts
• [x] Amend HEAD commit to remove the line stating to skip CI

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Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.

[kesselb]

• Apply failed because of different import statements and the new "run only jobs with a given class" feature.
• Cherry picked https://github.com/nextcloud/server/pull/45855.