bodhi / backend / new_updates_sync: don't try and link epel-release for 10 yet
    
    We don't have a stable repo, so skip the epel-release 'latest' link for
    epel10 for now. Since we don't have any modular stuff left, we can just
    reuse that conditional. ;)
    
    Signed-off-by: Kevin Fenzi <kevin@scrye.com>