dcmanager subcloud errros command doesn´t show enough information

[Fabrizio Perez]

Brief Description
-----------------
dcmanager subcloud errors doesn´t show enough information.

root cause of strategy upgrade failure is easy to find reading logs but it doesn't appear in the output of the command.

Severity
--------
<Minor: System/Feature is usable with minor issue>

Steps to Reproduce
------------------

    Install 21.12p12 load
    deploy subcloud
    perfom System Controller upgrade
    create subcloud strategy upgrade
    apply strategy
    when data migration state start Induce a failure by modifying one of the data migration scripts under /etc/upgrade.d (50-validate-oidc-auth-apps.py) to force failure
    wait for strategy upgrade to fail
    run dcmanager subcloud errors command

Expected Behavior
------------------
dcmanager subcloud errors command show enough information to identify failure root cause

Actual Behavior
----------------
dcmanager subcloud errors doesn´t show enough information.

Reproducibility
---------------
<Reproducible 100%

System Configuration
--------------------
DC with SX subcloud

Branch/Pull Time/Commit
-----------------------

Last Pass
---------

Timestamp/Logs
--------------

Test Activity
-------------
Feature Testing

Workaround
----------

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/config/+/897796
Committed: https://opendev.org/starlingx/config/commit/975490c8b4ef4e2d04c1c4f579afdd439758845d
Submitter: "Zuul (22348)"
Branch: master

commit 975490c8b4ef4e2d04c1c4f579afdd439758845d
Author: fperez <email address hidden>
Date: Tue Oct 10 09:11:08 2023 -0300

    Add error information for subcloud upgrades

    This commit includes additional information for the orchestrator during
    the subcloud upgrade failure stage, specifically at the steps that run
    migration scripts.

    Test plan:
    - PASS: Execute the 'upgrade_controller_simplex' command, forcing a
    failure in different migration scripts. Verify that the output message
    contains sufficient execution information.

    Closes-Bug: 2038950

    Signed-off-by: fperez <email address hidden>
    Change-Id: I9971f08e763856938517e1ef2e7a76443432f734