Bumps [django](https://github.com/django/django) from 3.1.7 to 3.1.8. - [Release notes](https://github.com/django/django/releases) - [Commits](https://github.com/django/django/compare/3.1.7...3.1.8) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>