WIP TEST: Reproduce OCPBUGS-23514 for CVO

[dis016]

(sorry for the noise)

Attempt to make OCPBUGS-23514 reproducible by creating an ephemeral payload that will not respect CVO's update assumptions/contract. I try to make the following work:

Install 4.19 EC2
Build a 4.19 ephemeral payload with this patch, containing an machine-config CO with hardcoded 4.19.0-ec.2 "--payload-version,RELEASE_VERSION(=instead of actual payload image version)
Update the cluster to this ephemeral payload
machine-config operator should set the CO version to 4.19.0-ec.2 and therefore CVO will never consider the CO as updated, and the update should get stuck on it (reproducing OCPBUGS-23514)

[openshift-ci]

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[openshift-ci]

@dis016: The following tests 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-gcp-op-single-node	52b0f51	link	true	/test e2e-gcp-op-single-node
ci/prow/e2e-agent-compact-ipv4	52b0f51	link	false	/test e2e-agent-compact-ipv4
ci/prow/e2e-aws-ovn-upgrade	52b0f51	link	true	/test e2e-aws-ovn-upgrade
ci/prow/e2e-azure-ovn-upgrade-out-of-change	52b0f51	link	false	/test e2e-azure-ovn-upgrade-out-of-change
ci/prow/e2e-hypershift	52b0f51	link	true	/test e2e-hypershift
ci/prow/e2e-gcp-op	52b0f51	link	true	/test e2e-gcp-op
ci/prow/e2e-aws-ovn-upgrade-out-of-change	52b0f51	link	false	/test e2e-aws-ovn-upgrade-out-of-change
ci/prow/images	52b0f51	link	true	/test images
ci/prow/e2e-aws-ovn	52b0f51	link	true	/test e2e-aws-ovn
ci/prow/e2e-gcp-op-ocl	52b0f51	link	false	/test e2e-gcp-op-ocl
ci/prow/okd-scos-e2e-aws-ovn	52b0f51	link	false	/test okd-scos-e2e-aws-ovn
ci/prow/bootstrap-unit	52b0f51	link	false	/test bootstrap-unit
ci/prow/unit	52b0f51	link	true	/test unit
ci/prow/e2e-gcp-op-techpreview	52b0f51	link	false	/test e2e-gcp-op-techpreview

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