Cookiecutter

Fixed
- Fix pre-commit config ([3435](https://github.com/cookiecutter/cookiecutter-django/pull/3435))
Updated
- Update sphinx to 4.3.1 ([3438](https://github.com/cookiecutter/cookiecutter-django/pull/3438))

Updated
- Update coverage to 6.2 ([3437](https://github.com/cookiecutter/cookiecutter-django/pull/3437))

Changed
- Setup pre-commit for the template files ([3433](https://github.com/cookiecutter/cookiecutter-django/pull/3433))

Changed
- Add an assertion to fix mypy type error ([3150](https://github.com/cookiecutter/cookiecutter-django/pull/3150))
- Make `django` depend on `redis` in local Docker ([3265](https://github.com/cookiecutter/cookiecutter-django/pull/3265))

Changed
- Cache Python dependencies on our CI ([3434](https://github.com/cookiecutter/cookiecutter-django/pull/3434))
- Small formatting fixes to Deploy to PythonAnywhere page ([3432](https://github.com/cookiecutter/cookiecutter-django/pull/3432))
Updated
- Upgrade to Django 3.2 ([3425](https://github.com/cookiecutter/cookiecutter-django/pull/3425))

Changed
- Removed unnecessary custom context processor exposing the DEBUG Template Context Variable ([3042](https://github.com/cookiecutter/cookiecutter-django/pull/3042))
- Clean up trailing whitespace ([3430](https://github.com/cookiecutter/cookiecutter-django/pull/3430))
Updated
- Update redis to 4.0.2 ([3431](https://github.com/cookiecutter/cookiecutter-django/pull/3431))
- Bump Postgres to 13.5 12.9 11.14 10.19; add 14.1 ([3428](https://github.com/cookiecutter/cookiecutter-django/pull/3428))