Reintroduce the OPENSSL_CONF=/non-existing-file workaround
    
    Since crypto-policies-20191002-1.gitc93dc99.fc32, the maximum version of TLS
    is customized in Fedora as well.
    
    See https://bugzilla.redhat.com/show_bug.cgi?id=1778357
    and https://bugs.python.org/issue38815
    
    This reverts commit b33b4a5162e2b5873c5846dcba882f3569ab76cd.