Bump django-model-utils from 4.0.0 to 4.1.1 in /{{cookiecutter.project_slug}}/requirements

[dependabot-preview]

Bumps django-model-utils from 4.0.0 to 4.1.1.

Changelog

Sourced from django-model-utils's changelog.

4.1.1 (2020-12-01)

• Applied isort to codebase (Refs GH-#402)
• Fix TypeError in save when model inherits from both TimeStampModel and StatusModel. (Fixes GH-465)

4.1.0 (2020-11-29)

• Update InheritanceQuerySetMixin to avoid querying too much tables
• TimeStampedModel now automatically adds 'modified' field as an update_fields parameter even if it is forgotten while using save()
• FieldTracker now marks fields as not changed after refresh_from_db
• FieldTracker now respects update_fields changed in overridden save() method
• Replace ugettext_lazy with gettext_lazy to satisfy Django deprecation warning
• Add available_objects manager to SoftDeletableModel and add deprecation warning to objects manager.
• StatusModel now automatically adds 'status_changed' field during save as an update_fieldsparameter when 'status' is present in it to make sure it is not forgotten.
• Update test requirements
• Move tests to GitHub Actions: https://github.com/jazzband/django-model-utils/actions
• Drop support for Django 2.1
• Add support for Python 3.9
• Add support for Django 3.1

Commits

• f482042 Add a release date for 4.1.1.
• 2269f81 Fix TypeError in save when model inherits from both TimeStampModel and Status...
• 79ff8ea Used isort to sort imports (#460)
• b0be6e2 Adjust CHANGES to mention 4.1.0 release and add missing changes.
• 1b3ebb7 Merge pull request #462 from jazzband/gha
• 382110f Update .github/workflows/test.yml
• 8689faf Update tox.ini
• e630935 Please coverage
• 415742c Fix typo.
• 124ca26 Remove duplicate version mapping.
• Additional commits viewable in compare view

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