Update django to 3.1.2

[pyup-bot]

This PR updates django from 3.1.1 to 3.1.2.

Changelog

3.1.2

==========================

*October 1, 2020*

Django 3.1.2 fixes several bugs in 3.1.1.

Bugfixes
========

* Fixed a bug in Django 3.1 where ``FileField`` instances with a callable
storage were not correctly deconstructed (:ticket:`31941`).

* Fixed a regression in Django 3.1 where the :attr:`.QuerySet.ordered`
attribute returned incorrectly ``True`` for ``GROUP BY`` queries (e.g.
``.annotate().values()``) on models with ``Meta.ordering``. A model's
``Meta.ordering`` doesn't affect such queries (:ticket:`31990`).

* Fixed a regression in Django 3.1 where a queryset would crash if it contained
an aggregation and a ``Q`` object annotation (:ticket:`32007`).

* Fixed a bug in Django 3.1 where a test database was not synced during
creation when using the :setting:`MIGRATE <TEST_MIGRATE>` test database
setting (:ticket:`32012`).

* Fixed a ``django.contrib.admin.EmptyFieldListFilter`` crash when using on a
``GenericRelation`` (:ticket:`32038`).

* Fixed a regression in Django 3.1.1 where the admin changelist filter sidebar
would not scroll for a long list of available filters (:ticket:`31986`).


==========================

Links

• PyPI: https://pypi.org/project/django
• Changelog: https://pyup.io/changelogs/django/
• Homepage: https://www.djangoproject.com/

[codecov-commenter]

Codecov Report

Merging #1344 into master will increase coverage by 25.62%.
The diff coverage is 97.39%.

@@             Coverage Diff             @@
##           master    #1344       +/-   ##
===========================================
+ Coverage   58.36%   83.99%   +25.62%     
===========================================
  Files           9       48       +39     
  Lines         233      681      +448     
===========================================
+ Hits          136      572      +436     
- Misses         97      109       +12     

Impacted Files	Coverage Δ
pypro/modulos/apps.py	0.00% <0.00%> (ø)
pypro/turmas/apps.py	0.00% <0.00%> (ø)
pypro/urls.py	71.42% <ø> (ø)
pypro/modulos/migrations/0003_populando_slug.py	80.00% <80.00%> (ø)
pypro/settings.py	65.21% <90.00%> (+4.20%)	⬆️
pypro/aperitivos/models.py	90.90% <90.90%> (ø)
pypro/modulos/models.py	92.30% <92.30%> (ø)
pypro/aperitivos/admin.py	100.00% <100.00%> (ø)
pypro/aperitivos/migrations/0001_initial.py	100.00% <100.00%> (ø)
...o/aperitivos/migrations/0002_auto_20190910_0940.py	100.00% <100.00%> (ø)
... and 75 more

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[pyup-bot]

Closing this in favor of #1400