[ci] Move use master containers to pre_deploy hook

[elfiesmelfie]

This hook runs before the controlplanae is deployed, instead of after. This should reduce the runtime of the builds by avoiding the need to wait for the changes to the openstackversions to be reconciled.

[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://softwarefactory-project.io/zuul/t/rdoproject.org/buildset/2b03510615b74c34adcda483b271f83c

✔️ telemetry-openstack-meta-content-provider-master SUCCESS in 47m 33s
❌ functional-autoscaling-tests-osp18 FAILURE in 20m 56s

[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://softwarefactory-project.io/zuul/t/rdoproject.org/buildset/2bc2800f13c344738ece85be0c59095b

✔️ telemetry-openstack-meta-content-provider-master SUCCESS in 44m 16s
❌ functional-tests-osp18 FAILURE in 24m 49s

[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://softwarefactory-project.io/zuul/t/rdoproject.org/buildset/4cf6b00eed394bf9be3dfad6b1cd4da8

✔️ telemetry-openstack-meta-content-provider-master SUCCESS in 2h 41m 59s
❌ functional-tests-osp18 FAILURE in 2h 22m 22s