[CI] Test Operator against OpenShift 4.8
Summary
Currently the pipeline runs against OpenShift 4.6 and 4.7 and we do the QA testing. We have at least one issue that is reported against OpenShift 4.8.
Acceptance criteria
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Provision a new cluster for OpenShift 4.8 -
Add build, review, and QA jobs for OpenShift 4.8 to CI
Further work
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Identify corner cases in OpenShift 4.8 (needs further investigation) -
Add more test to check for corner cases.