Update django-debug-toolbar requirement from <2.1,>=1.10 to >=1.10,<2.2
Update django-debug-toolbar requirement from <2.1,>=1.10 to >=1.10,<2.2

Updates the requirements on [django-debug-toolbar](https://github.com/jazzband/django-debug-toolbar) to permit the latest version.
- [Release notes](https://github.com/jazzband/django-debug-toolbar/releases)
- [Changelog](https://github.com/jazzband/django-debug-toolbar/blob/master/docs/changes.rst)
- [Commits](https://github.com/jazzband/django-debug-toolbar/compare/1.10...2.1)

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