[CI] Test baremetal management cluster deployment with 2 DNS

Claudine Le Mercierrequested to merge
1467-ci-test-management-cluster-deployment-with-2-db into main

For the time being, a baremetal management cluster is deployed with one DNS (1.1.1.1) in the CI. Deploy it with a second DNS 8.8.8.8.

cf. #1467 (closed)

Edited by Thomas Morin

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