[QE][BUG] Fixed code for insecure login is not being used

[adrianriobo]

With 4960590 we introduce a fallback mechanism for oc login when it reports unknown CA for server, but somehow the check for that condition is not being matched, as so when we hit the issue the scenario fails.

<testcase name="Overall cluster health" status="failed" time="1010.846097">
<failure message="Step executing "oc new-project testproj" succeeds: command 'oc new-project testproj', expected to succeed, exited with exit code: 1 Command stdout: Command stderr: Unable to connect to the server: tls: failed to verify certificate: x509: certificate signed by unknown authority "/>

Need to fix it