[zuul] Disable autoscaling tempest scenario

[vyzigold]

The scenario needs caracal images to succeed. Disable it until the CI starts using newer images.

[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/e63398b42be140f1b99218de43ce4557

✔️ openstack-k8s-operators-content-provider SUCCESS in 1h 45m 02s
✔️ podified-multinode-edpm-deployment-crc SUCCESS in 1h 20m 04s
❌ telemetry-operator-multinode-autoscaling-tempest FAILURE in 1h 13m 53s

[vyzigold]

recheck
Looks like ceilometer pod restarted during the test (which is our current solution to get the latest set of keystone endpoints when they change after ceilometer is started)

[vyzigold]

/retest

[vyzigold]

/hold until beta

[jlarriba]

/unhold

[jlarriba]

/lgtm

Downstream CI changes that will improve our testing capabilities