ci(deps): Update dependency djangorestframework to v3.13.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
djangorestframework (source, changelog)	==3.12.4 -> ==3.13.1

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Release Notes

encode/django-rest-framework

### [`v3.13.1`](https://togithub.com/encode/django-rest-framework/compare/3.13.0...3.13.1) [Compare Source](https://togithub.com/encode/django-rest-framework/compare/3.13.0...3.13.1) ### [`v3.13.0`](https://togithub.com/encode/django-rest-framework/compare/3.12.4...3.13.0) [Compare Source](https://togithub.com/encode/django-rest-framework/compare/3.12.4...3.13.0)

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Configuration

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