www/py-django-q2: Update 1.10.0 => 1.11.1

Upstream switched to uv for build.

Changelog:
https://github.com/django-q2/django-q2/blob/v1.11.1/CHANGELOG.md

PR: 297936
Reported by: Einar Bjarni Halldórsson <einar@isnic.is> (maintainer)
Approved by: osa, vvd (Mentors, implicit)