Move creation of clouds.yaml file to edpm_prepare

[eduolivares]

The clouds.yaml file was created by the tempest role because it is needed to execute tempest tests.
Later, those tasks from the tempest role were reused by the tobiko role, because the file is needed for running tobiko as well. This change moves the creation of clouds.yaml to an earlier step in the edpm_prepare role and it could be reused by any other stages executed later (e.g. new test frameworks).

Depends-On: openstack-k8s-operators/tcib#123
OSPRH-1670

As a pull request owner and reviewers, I checked that:

• Appropriate testing is done and actually running
• Appropriate documentation exists and/or is up-to-date:
  • README in the role
  • Content of the docs/source is reflecting the changes

[openshift-ci]

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[softwarefactory-project-zuul]

Build failed (check pipeline). Post recheck (without leading slash)
to rerun all jobs. Make sure the failure cause has been resolved before
you rerun jobs.

https://review.rdoproject.org/zuul/buildset/f9275d3da5034e5296510a6eef3c01df

✔️ openstack-k8s-operators-content-provider SUCCESS in 42m 25s
❌ podified-multinode-edpm-deployment-crc FAILURE in 21m 47s
❌ cifmw-data-plane-adoption-osp-17-to-extracted-crc RETRY_LIMIT in 26m 13s
✔️ noop SUCCESS in 0s
✔️ cifmw-molecule-edpm_prepare SUCCESS in 5m 02s
✔️ cifmw-molecule-tempest SUCCESS in 5m 09s
✔️ cifmw-molecule-tobiko SUCCESS in 5m 11s

[openshift-merge-robot]

PR needs rebase.

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[cjeanner]

@eduolivares heya! Is this still something you're working on? Do you need any help to finalize this change?

[eduolivares]

@eduolivares heya! Is this still something you're working on? Do you need any help to finalize this change?

@cjeanner I postponed this PR for too long and now I'd need to update it (for example, the tobiko role doesn't exist anymore) and this is not a good moment for me to resume working on it.
Perhaps I should close it and take it again when I have more time.

[cjeanner]

@eduolivares care to close it, probably get some jira card to not forget about that task, and re-open a PR when you can handle it? That would help cleaning the backlog in here, really.

Thanks!