Bump djangorestframework from 3.9.4 to 3.10.3
Bump djangorestframework from 3.9.4 to 3.10.3

Bumps [djangorestframework](https://github.com/encode/django-rest-framework) from 3.9.4 to 3.10.3.
- [Release notes](https://github.com/encode/django-rest-framework/releases)
- [Commits](https://github.com/encode/django-rest-framework/compare/3.9.4...3.10.3)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
ebmdatalab/openprescribing,annapowellsmith/openpresc,ebmdatalab/openprescribing,annapowellsmith/openpresc,ebmdatalab/openprescribing,annapowellsmith/openpresc,ebmdatalab/openprescribing,annapowellsmith/openpresc