Update pytest-django requirement from <4.5,>=4.4 to >=4.4,<4.6
Update pytest-django requirement from <4.5,>=4.4 to >=4.4,<4.6

Updates the requirements on [pytest-django](https://github.com/pytest-dev/pytest-django) to permit the latest version.
- [Release notes](https://github.com/pytest-dev/pytest-django/releases)
- [Changelog](https://github.com/pytest-dev/pytest-django/blob/master/docs/changelog.rst)
- [Commits](https://github.com/pytest-dev/pytest-django/compare/v4.4.0...v4.5.2)

---
updated-dependencies:
- dependency-name: pytest-django
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
django-oscar/django-oscar-stores,django-oscar/django-oscar-stores,django-oscar/django-oscar-stores