SUSE-SU-2020:3292-1 Security update for python-waitress

This update for python-waitress to version 1.4.3 fixes the following security issues: - CVE-2019-16785: HTTP request smuggling through LF vs CRLF handling bsc1161088. - CVE-2019-16786: HTTP request smuggling through invalid Transfer-Encoding bsc1161089. - CVE-2019-16789: HTTP request smuggling...