Support for redis>=6

[spmartin823]

I've been inadvertently using this with redis 6.0.5 (thanks :latest tag in docker-compose) for a few weeks with no problems. Can we bump the version in the requirements.txt?

[vic-bukhantsov]

@sebleier many projects keep using Django 3.2 in production. Please keep supporting the project or assign an additional maintainer.

Thanks.