www/py-django-formset-js-improved: Update to 0.5.0.5
- Switch to the PEP517 build framework to make the port future proof.
- Also transition to the more preferred DISTVERSION.
Changelog:
https://github.com/pretix/django-formset-js/compare/0.5.0.3...0.5.0.5
PR: 293462
Approved by: maintainer timeout