Update CI test script to use built operator image

[johnmcollier]

Updates the OpenShift CI test scripts for this repo so that the operator image built by the CI is used, rather than the one hosted on quay.io

@devfile/qe-team

[josephca]

/lgtm

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: johnmcollier, josephca
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[openshift-merge-robot]

@johnmcollier: The following test failed, say /retest to rerun all failed tests:

Test name	Commit	Details	Rerun command
ci/prow/e2e-test	3a34f4f	link	/test e2e-test

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[johnmcollier]

Merging without the CI passing since we need the changes in openshift/release#14210 to be merged first.