Another attempt at enabling fstrim.timer on F32 upgrades (#1811506)
    
    Avoid using %systemd_post as it is guarding the trigger with '$1 -eq 1'
    which not true for %triggerpostun (it's 2 for updates in triggerpostun).
    
    Also, while at this, fine-tune the trigger condition to trigger for
    package updates from older F32 versions as well -- this makes it much
    easier to test this fix, and also fixes fstrim.timer for anyone who
    installed from F32 beta media.