[2.0] Update Django integration to use new scopes

### Problem Statement

Some integrations are still using old APIs like hub cloning.

### Solution Brainstorm

Update the Django integration from old-style (e.g. `configure_scope`) hubs&scopes API to the new scopes API and make sure the data sent is still the same.

```[tasklist]
### Tasks
- [x] Django: https://github.com/getsentry/sentry-python/pull/2845
```