Django ASGI test suite is skipped for Django 4

### How do you use Sentry?

Sentry Saas (sentry.io)

### Version

1.34.0

### Steps to Reproduce

https://github.com/getsentry/sentry-python/pull/2495#issuecomment-1805326370

### Expected Result

We run the ASGI tests with Django 4.

### Actual Result

We don't.