greenwave: specify exact versions for openQA gating policy
    
    I was assuming Bodhi queried on "fedora-rawhide" for Rawhide
    updates, but it seems it does not, it queries on "fedora-35" (or
    whatever the release number is). We do not want to apply the
    gating to Rawhide updates ATM, as openQA does not test them.
    So unfortunately we'll need to hand-tend this list unless I can
    think of a better approach.
    
    Signed-off-by: Adam Williamson <awilliam@redhat.com>