add new method for django open redirect rule

[cleibl]

This PR updates the rule python.django.security.injection.open-redirect.open-redirect to support the method url_has_allowed_host_and_scheme().

url_has_allowed_host_and_scheme() replaced the deprecated is_safe_url() in django 3.0 : https://docs.djangoproject.com/en/4.0/releases/3.0/#:%7E:text=To%20avoid%20possible%20confusion%20as%20to%20effective%20scope%2C%20the%20private%20internal%20utility%20is_safe_url()%20is%20renamed%20to

To avoid possible confusion as to effective scope, the private internal utility is_safe_url() is renamed to url_has_allowed_host_and_scheme()

[CLAassistant]

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[kurt-r2c]

@cleibl please pull in latest changes from upstream - you are missing a CI fix from last week. This should get you a clean set of CI checks.

[cleibl]

Thanks @kurt-r2c! I've sync'd the fork with the latest changes from upstream.