mail/pyzor: Fix encoding issues

Add upstream patches to fix encoding issues:

https://github.com/SpamExperts/pyzor/issues/38
https://github.com/SpamExperts/pyzor/issues/64

Take MAINTAINER'ship.

PR: 261253
Approved by: chalpin@cs.wisc.edu (maintainer)

(cherry picked from commit e0559f08171d8b4dc1d95feeccfd01e9924c6eb8)