Zuul/Tox: distcloud: Tests fail with TypeError

[Leonardo Fagundes Luz Serrano]

Brief Description
-----------------
Some tests fail due to missing STX deps

In this case. distcloud repo zuul tests failing with:
TypeError: float() argument must be a string or a number, not 'tuple'

which is due to tests not installing:
https://opendev.org/starlingx/upstream/src/branch/master/openstack/python-keystoneauth1

Severity
--------
<Major: System/Feature is usable but degraded>
Reviews that depend on STX packages cannot be properly tested

Steps to Reproduce
------------------
Post review to distcloud with code depending on a STX custom pkg

Expected Behavior
------------------
STX deps are installed before tests

Actual Behavior
----------------
STX deps are not installed before test

Reproducibility
---------------
Reproducible

System Configuration
--------------------
NA

Branch/Pull Time/Commit
-----------------------
master - July 23th 2024

Last Pass
---------
This is a new test scenario

Timestamp/Logs
--------------
https://zuul.opendev.org/t/openstack/build/9b370022e0be4f3c8634b4ac05d1d890

Test Activity
-------------
Zuul test after posting review

Workaround
----------
Unknown

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/distcloud/+/924676
Committed: https://opendev.org/starlingx/distcloud/commit/aef84c86460abfe9dcd1874ce978b1a09056f4f6
Submitter: "Zuul (22348)"
Branch: master

commit aef84c86460abfe9dcd1874ce978b1a09056f4f6
Author: Leonardo Fagundes Luz Serrano <email address hidden>
Date: Mon Jul 22 16:35:15 2024 -0300

    Zuul/Tox: Install custom python3-keystoneauth1

    Some packages available upstream have custom versions
    in STX repos. Tests need to be against these custom
    dependencies. In this case, distcloud repo requires
    python3-keystoneauth1.

    This commit adds logic for installing the latest
    available STX build of test dependencies.

    Test Plan:
    pass - Install bindep deps and requirements, then run
           the ansible playbook to install STX deps
           tools/gate/playbooks/install-stx-custom-deps.yaml
           tox -epy39 -c distributedcloud/tox.ini

    Closes-Bug: 2073917

    Change-Id: I1c025de9699ca3b388b81a5d77e2c0cd46ce9d7a
    Signed-off-by: Leonardo Fagundes Luz Serrano <email address hidden>