Confirm support for Django 4.2 in 0.9.1

[SupImDos]

Changes

• Bumps django version in requirements.txt for testing
• Bumps sqlparse version in requirements.txt for testing (compatibility)
• Fixes unit test related to change in Fixed #31474 -- Made QuerySet.delete() not return the number of deleted objects if it's zero. django/django#12747

Notes

The following was run with these changes to confirm compatibility:

$ pyenv local 3.9
$ python -m venv venv
$ source venv/bin/activate
$ pip install -r requirements.txt
$ python ./manage.py test