chore(deps): update pre-commit hook adamchainz/django-upgrade to v1.16.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
adamchainz/django-upgrade	repository	minor	1.15.0 -> 1.16.0

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Release Notes

adamchainz/django-upgrade (adamchainz/django-upgrade)

v1.16.0

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• Remove the Django 5.0+ fixer that dropped .choices from model field choices parameters.
  It was too unreliable because it could break use for “DIY” enumeration types.

  Thanks to Niccolò Mineo and washeck for reporting in Issue #&#8203;417 <https://github.com/adamchainz/django-upgrade/issues/417>__.

• Add Django 1.10+ fixer to rewrite request.user functions that changed to boolean attributes: is_authenticated and is_anonymous.

  Thanks to Alessandro Ferrini in PR #&#8203;423 <https://github.com/adamchainz/django-upgrade/pull/423>__.

• Add Django 2.0+ imports fixes for names moved from django.core.urlresolvers to django.urls.

  Thanks to Thibaut Decombe in PR #&#8203;404 <https://github.com/adamchainz/django-upgrade/pull/404>__.

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