www/py-django-simple-history: Update to 2.8.0
- Also assign the port to Django 2.2 (current LTS release) as Django 1.11 is End-of-Life.
- Separate USES block from non-related variables while I'm here.
Changelog:
https://github.com/treyhunner/django-simple-history/blob/2.8.0/CHANGES.rst
PR: 245648
Approved by: maintainer timeout (14+ days)