[sle][migration][backlog] enhance activate python2 as workaround on SLE15-SP1+
After thinking twice, I think the current workaround still has some problems. Though the workaround doesn't inflence the current SLES15SP4 cases, and limits the cases to target 15sp3 cases, it has a problem that as long as it performing SUSEConnect -d, it would install python2 module. Not all situations need to do this. The issue happens after migration and deregister the OS, we need to add the workaround when needing to deregister the os after migration.
For example this case: https://openqa.suse.de/tests/8637428
It need to deregister the os before migration, it registers python2 module which is not necessary.
Open a ticket to trace this problem, it's fine for me to reject this ticket if necessary.