bodhi: Remove usage of version_int from pungi template
    
    EPEL 10 has minor versions, and bodhi's Release.version_int property
    doesn't handle versions with a dot correctly (yet).  Almost all of our
    usage is for constructing strings or for equality comparisons that can
    be strings, so we can just use Release.version instead.  There is an
    instance of a numerical greater than or equal to comparison, but it is
    inside a condition for release.id_prefix == 'FEDORA', so it shouldn't
    get evaluated for EPEL updates.
    
    Signed-off-by: Carl George <carlwgeorge@gmail.com>