Security fix for the ALT Linux 9 package python-module-yaml version 5.4.1-alt0.p9

5.4.1-alt0.p9 built March 22, 2021 Andrey Cherepanov in task 267990 --- March 18, 2021 Andrey Cherepanov - Backport version 5.4.x to p9 branch fixes CVE-2020-1747...