installer: Override cli image reference

[LorbusChris]

Depends on: openshift/installer#2850

cc @vrutkovs

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: LorbusChris
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[openshift-ci-robot]

@LorbusChris: The following tests failed, say /retest to rerun them all:

Test name	Commit	Details	Rerun command
ci/prow/ci-operator-registry	dd4854c	link	/test ci-operator-registry
ci/prow/ci-operator-config	dd4854c	link	/test ci-operator-config
ci/prow/correctly-sharded-config	dd4854c	link	/test correctly-sharded-config
ci/prow/generated-config	dd4854c	link	/test generated-config
ci/prow/pj-rehearse	dd4854c	link	/test pj-rehearse

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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[LorbusChris]

ok, this is probably not needed