:arrow_up: Bump djangorestframework in /backend/uclapi (#3258)
:arrow_up: Bump djangorestframework in /backend/uclapi (#3258)

Bumps [djangorestframework](https://github.com/encode/django-rest-framework) from 3.12.2 to 3.12.4.
- [Release notes](https://github.com/encode/django-rest-framework/releases)
- [Commits](https://github.com/encode/django-rest-framework/commits)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
Co-authored-by: Ethan Wood <1c290607f9ae88d18f63096af314c218257e6f3b@users.noreply.github.com>
uclapi/uclapi,uclapi/uclapi,uclapi/uclapi,uclapi/uclapi