Bump django from 2.2.5 to 2.2.6
Bump django from 2.2.5 to 2.2.6

Bumps [django](https://github.com/django/django) from 2.2.5 to 2.2.6.
- [Release notes](https://github.com/django/django/releases)
- [Commits](https://github.com/django/django/compare/2.2.5...2.2.6)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
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