Log Message:
py-django-taggit: updated to 1.4.0

1.4.0

* Add Python 3.9 support.
* Remove Python 3.5 support.
* Add Django 3.2 support.
* Remove Django 1.11 and 3.0 support.
* Add Danish translation.
* Fix crashing that could occur with ``similar_objects`` in multi-inheritance \ 
contexts.
* Add support for custom fields on through table models with `through_defaults` \ 
for ``TaggedManager.add`` and ``TaggedManager.set``.