Adding keycloakoauth2

[indy-independence]

I'm trying to do authentication via KeycloakOAuth2 backend and I couldn't get it to work without adding a new class in drf_social_oauth2/backends.py like so:

from social_core.backends.keycloak import KeycloakOAuth2

class DjangoKeycloakOAuth2(KeycloakOAuth2):
    name = "Keycloak"

Is this expected or am I doing something wrong? If it's expected I can just send in a PR with above 3 lines of code?