* Use Python 3.10 for deployments on PyPi
* Update gh-action-pypi-publish version
* Update python version
* Update checkout and setup-python versions
* Upgrade dev dependencies
* fromat examples and few files to follow black new version
* Upgrade pytest version
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Co-authored-by: Firas Kafri <firaskafri@Firass-MacBook-Pro-2.local>
* Update Django's main branch name
* Add Python 3.9 to tox
* Update base gh action versions
* Add Django 3.2 to tests
* Remove redundant Django 1.11 references
* Update setup.py for new Django and Python versions
