Update FluxCD image tags to support stx10.0 upgrade

[Joshua Reed]

Brief Description
-----------------

Update upgrade playbook to download prior releases FluxCD images for K8S v1.24.4

Severity
--------
Critical

Steps to Reproduce
------------------
Try to upgrade from stx9.0 to stx10.0

Expected Behavior
------------------
Try to upgrade from stx9.0 to stx10.0 should work.

Actual Behavior
----------------
Try to upgrade from stx9.0 to stx10.0 fails and FluxCD pods are not active.

Reproducibility
---------------
100%

System Configuration
--------------------
Any

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

Last Pass
---------
Never

Timestamp/Logs
--------------
The flux-helm pods are in ImagePullBackOff state due to failure to pull the required images.

flux-helm helm-controller-759b895dbb-h9tf8 0/1 ImagePullBackOff 1 (47h ago) 47h
flux-helm source-controller-7f4bb65f88-898jt 0/1 ImagePullBackOff 1 (47h ago) 47h

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

Workaround
----------

To allow the upgrade to finish, the following fluxCD images needed to be added:

docker.io/fluxcd/helm-controller:v0.27.0
docker.io/fluxcd/source-controller:v0.32.1

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/ansible-playbooks/+/917859
Committed: https://opendev.org/starlingx/ansible-playbooks/commit/095d7c4d6c04b38f2a3d0eeecde4c6cc0cbb8dc5
Submitter: "Zuul (22348)"
Branch: master

commit 095d7c4d6c04b38f2a3d0eeecde4c6cc0cbb8dc5
Author: Reed, Joshua <email address hidden>
Date: Wed May 1 09:55:08 2024 -0600

    Update FluxCD image tags for upgrade.

    Add FluxCD images from helm-controller v0.27.0 and
    source-controller v0.32.1 to support upgrade from
    stx9.0 to stx10.0

    Test Case:
    PASS: Perform an upgrade from stx9.0 to stx10.0 and
          after running upgrade playbook verify that FluxCD
          pods are successfully running.

    Closes-Bug: 2064525

    Change-Id: I0a5c957fd7d2ed1ea7c49f2a7ad983c841ae880e
    Signed-off-by: Reed, Joshua <email address hidden>