Update python-rhsm to 1.20.1-1
    Resolves: #1472715 - Python module rhsm should never call exit() (jhnidek@redhat.com)
    Resolves: #1444453 - Have gettext return unicode instead of bytes. (awood@redhat.com)
    Resolves: #1457197 - Env. variable no_proxy=* is not ignored (jhnidek@redhat.com)
    Resolves: #1392709 - Display better error msg., when wrong proxy is set up
    Resolves: #1443159 - Added default value for splay configuration (jhnidek@redhat.com)
    Resolves: #1451166 - Fix Host header when using proxy (khowell@redhat.com)
    Resolves: #1426343 - fixed rct to display cert without subjectAltName.
    Resolves: #1432990 - Better message for bad CA cert (wpoteat@redhat.com)