Default to cpms on controlplane resize

[RaphaelBut]

CPMS should be the default case now when this command is used, as clusters < 4.12 are EOL.
We keep the old way for edge cases, issues with CPMS or any leftover EOL cluster.

Solves https://issues.redhat.com/browse/OSD-27239

[joshbranham]

/lgtm

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