Add regression allowance for OLMv1

[tmshort]

OLMv1 is new in 4.18. we are experiencing flakiness in the some tests that we may have resolved, or at least, have added code to improve logging.

[openshift-ci]

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[neisw]

Note, we are holding for an update in Sippy to honor the allowed regressions for new tests. Shouldn't impact this pr but fyi.

[tmshort]

This may not be necessary, as we committed some fixes that should resolve (and help debug if needed) the problem we were having.

[openshift-ci]

@tmshort: all tests passed!

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