[release-4.20] CNF-22668: Replace centos references with ubi

[fontivan]

We should not be using centos at this point, so instead use ubi

[openshift-ci]

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[fontivan]

/cc @shajmakh @SchSeba

[openshift-ci]

@fontivan: 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-aws-ci-tests	653e726	link	true	/test e2e-aws-ci-tests
ci/prow/images	653e726	link	true	/test images

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[fontivan]

/test e2e-aws-ci-tests
/test images