c8 wallaby: deployment fails because of invalid format in containers-prepare-parameters.yaml

[Takashi Kajinami]

Description
===========
Currently the tripleo-ci-centos-8-standalone job is failing because of the following failure during standalone deployment process.

https://zuul.opendev.org/t/openstack/build/ba280278a6474b3b9dd9c99443936ab5
```
Exception: [Errno 16] Device or resource busy: '/home/zuul/tripleo-deploy/heat_launcher/tripleo_deploy-8di1cmq9'
Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/tripleoclient/v1/tripleo_deploy.py", line 1272, in _standalone_deploy
    parsed_args)
  File "/usr/lib/python3.6/site-packages/tripleoclient/v1/tripleo_deploy.py", line 783, in _deploy_tripleo_heat_templates
...
yaml.parser.ParserError: while parsing a block mapping
  in "<unicode string>", line 3, column 3:
    - imagename: "xxx.xxx.xxx.xxx:5001 ...
      ^
expected <block end>, but found '<scalar>'
  in "<unicode string>", line 3, column 37:
    - imagename: "xxx.xxx.xxx.xxx:5001/"tripleowallaby"/openstack-aodh-a ...
                                        ^
```

It seems the following change in tripleo-quickstart introduced "" around the container namespace unexpectedly.
https://review.opendev.org/c/openstack/tripleo-quickstart/+/845568

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/tripleo-quickstart/+/845649

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/tripleo-quickstart/+/845649
Committed: https://opendev.org/openstack/tripleo-quickstart/commit/31a286cb08b93ad2d3e69c62a0452ceea680fae7
Submitter: "Zuul (22348)"
Branch: master

commit 31a286cb08b93ad2d3e69c62a0452ceea680fae7
Author: Takashi Kajinami <email address hidden>
Date: Tue Jun 14 08:53:53 2022 +0900

    c8 wallaby: Remove double quotes from container namespace

    Commit 12fc4167c70531da80403746c1f172ec56570679 unexpectedly added
    double quotes around the container namespace, which breaks syntax
    of container-prepare-parameters.yaml

    Closes-Bug: #1978508
    Change-Id: If1c9dd18353c22545baa0262d49adb5cca3fd4e5