community/py3-dicttoxml: upgrade to 1.7.15
https://github.com/quandyfactory/dicttoxml/tree/v1.7.15#version-1715
(this project... has tarballs in the repo??? what)
https://github.com/quandyfactory/dicttoxml/tree/v1.7.15#version-1715
(this project... has tarballs in the repo??? what)