NO-JIRA: feat: add minimal SNO agent flow

[eggfoobar]

added support for 4vcpu config for SNO deployment

[openshift-ci]

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[eggfoobar]

/retest-required

[eggfoobar]

/retest

[openshift-ci]

@eggfoobar: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/e2e-metal-ipi-bm-bond	84bbcb2	link	false	/test e2e-metal-ipi-bm-bond

Full PR test history. Your PR dashboard.

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