We currently build kubevirtci images using docker, we should use whatever image build system is available instead.

Example: https://github.com/kubevirt/kubevirtci/blob/cde64d6ea529110e6c864e53043b65ff1a868c89/cluster-provision/centos9/build.sh#L7

In general we have solution(s) available that figure out what platforms are present and depending on what the user prefers. We should apply that logic to the hard coded parts that are remaining.

Example of a good solution: https://github.com/kubevirt/kubevirt/blob/35b53a7f687e1b7c53eb1476337aef36807e7402/hack/common.sh#L11