🌱 Fix log.SetLogger was never called warnings in tests

[mdbooth]

Fixes #2018

/hold

[k8s-ci-robot]

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[mdbooth]

That didn't work: https://prow.k8s.io/log?container=test&id=1778827027424481280&job=pull-cluster-api-provider-openstack-test

Curious.

[k8s-ci-robot]

PR needs rebase.

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[mdbooth]

I'm out of ideas here. This isn't working.