Tests generate 233 warnings

[itsthejoker]

The warnings are mostly two things:

• datetimefield received a naive datetime while time zone support is active
• django.conf.urls.url() is deprecated in favor of django.urls.re_path() (we are only guilty of some of these, some are dependency related)

We should clean some of these up, and the django 4 warnings will all have to be fixed before we can upgrade.