AzureAD V2 Tenant OAuth2 missing from the AUTH_BACKEND_ATTRS

[joachimBurket]

NetBox version

v3.3.5

Python version

3.9

Steps to Reproduce

1. Configured Social Auth with the backend azuread-v2-tenant-oauth2 (https://github.com/python-social-auth/social-core/blob/master/social_core/backends/azuread_tenant.py#L104)
2. Go in the login page

Expected Behavior

The SSO provider should be Microsoft Azure AD

Observed Behavior

The SSO provider is azuread-v2-tenant-oauth2.

The backend should be added in netbox/netbox/authentication.py (see https://github.com/joachimBurket/netbox/blob/azuread-v2-tenant-oauth2/netbox/netbox/authentication.py#L27)