Bump djangorestframework from 3.8.1 to 3.9.1 in /method_1/api

[dependabot[bot]]

Bumps djangorestframework from 3.8.1 to 3.9.1.

Release notes

Sourced from djangorestframework's releases.

Version 3.9.1

Change Notes: https://www.django-rest-framework.org/community/release-notes/#39x-series

Verision 3.9.0

Release announcement: https://www.django-rest-framework.org/community/3.9-announcement/

Change Notes: https://www.django-rest-framework.org/community/release-notes/#39x-series

Version 3.8.2

Point release for 3.8.x series

• Fix read_only + default unique_together validation. #5922
• authtoken.views import coreapi from rest_framework.compat, not directly. #5921
• Docs: Add missing argument 'detail' to Route #5920

Commits

• 453196e Version 3.9.1 (#6405)
• 4bb9a3c Fix XSS caused by disabled autoescaping in the default DRF Browsable API view...
• e3bd4b9 Fix #1811: take limit_choices_to into account with FK (#6371)
• 9c408b2 Remove reference to deprecated drf-openapi package (#6398)
• e0ae975 Fix a badly formatted title in docs (#6089)
• c052a86 compat: (py2) urlparse = urllib.parse (py3) (#6262)
• a49d744 Fix OpenAPI links (#6382)
• 0860ef9 Update quickstart to Django 2.0 routing syntax (#6385)
• 587058e Allow run_validators() to handle non-dict types. (#6365)
• 0cf18c4 Use Default Version in URLPathVersioning if 'version' Didn't Specified by Cli...
• Additional commits viewable in compare view

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