now that we officially have v18 in main the upgrade
will fail if upgrading from Octopus (v15) to main
because they are now considered 3 major releases apart
Additionally adding more debugging to the end
of the upgrade tests as something like `ceph health detail`
can be very useful to see at the end of failed
upgrade tests
Fixes: https://tracker.ceph.com/issues/57695
Signed-off-by: Adam King <adking@redhat.com>
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