Log Message:
py-django-contrib-comments: updated to 2.1.0

2.1.0

Dropped support for Django 1.11, 2.0, and 2.1.
Added the delete_stale_comments management command.
Added db_index to object_pk and is_removed fields.
Altered object_pk from TextField to CharField(max_length=64) so that the field \ 
can be indexed on MySQL, too. Warning: if you attach comments to objects whose \ 
primary key is serialized to more than 64 characters, you should provide a \ 
custom Comment model (more about that in the documentation) with an appropriate \ 
object_pk field.
Confirmed support for Python 3.9.
Added support for Django 3.2.