SUSE-SU-2020:0790-1 Security update for python-cffi, python-cryptography, python-xattr

This update for python-cffi, python-cryptography and python-xattr fixes the following issues: Security issue fixed: - CVE-2018-10903: Fixed GCM tag forgery via truncated tag in finalizewithtag API bsc1101820. Non-security issues fixed: python-cffi was updated to 1.11.2 bsc1138748, jscECO-1256,...