Update python39 to version 3.9.13 / rev 33 via SR 1000771
https://build.opensuse.org/request/show/1000771
by user StevenK + dimstar_suse
- Add patch CVE-2021-28861-double-slash-path.patch:
* http.server: Fix an open redirection vulnerability in the HTTP server
when an URI path starts with //. (bsc#1202624, CVE-2021-28861)