Failed to install cluster when my local host can't resolved vCenter dns.

    4.20

    always

    1.make sure your local host can't resolve the vCenter you used
    2.openshift-install create manifests --dir . --log-level debug
    3. installer hit warning like below:
    WARNING unable to resolve vSphere server vcenter-     2.devqe.ibmc.devcluster.openshift.com
    the machines dir didn't create as expect under cluster-api dir. and installation failed.

    installation failed

    installation successful

even installer vm can't resolve vCenter.the vCenter api always can be reached behind a proxy, it should NOT return directly. The bug should be these code:
https://github.com/openshift/installer/blob/main/pkg/asset/machines/clusterapi.go#L371

and this bug should not only on 4.20, need to be back port to all versions after the version that introduced the cluster API