Bump djangorestframework-stubs from 1.4.0 to 1.8.0

Bumps [djangorestframework-stubs](https://github.com/typeddjango/djangorestframework-stubs) from 1.4.0 to 1.8.0.
- [Release notes](https://github.com/typeddjango/djangorestframework-stubs/releases)
- [Commits](typeddjango/djangorestframework-stubs@1.4.0...1.8.0)

---
updated-dependencies:
- dependency-name: djangorestframework-stubs
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements/local.txt

@@ -12,7 +12,7 @@ django-stubs==1.13.0  # https://github.com/typeddjango/django-stubs
 pytest==6.2.5  # https://github.com/pytest-dev/pytest
 pytest-cov==4.0.0  # https://github.com/pytest-dev/pytest-cov
 pytest-sugar==0.9.5  # https://github.com/Frozenball/pytest-sugar
-djangorestframework-stubs==1.4.0  # https://github.com/typeddjango/djangorestframework-stubs
+djangorestframework-stubs==1.8.0  # https://github.com/typeddjango/djangorestframework-stubs
 responses==0.22.0  # https://github.com/getsentry/responses
 
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