Add some OIDC flow tests.

Enable testing for gregui, add a django config for testing.

gregsite/settings/testing.py

@@ -7,8 +7,8 @@ AUTHENTICATION_BACKENDS = [
     "sesame.backends.ModelBackend",  # link login
 ]
 
-OIDC_RP_CLIENT_ID = 'lalalalala'
-OIDC_RP_CLIENT_SECRET = 'lalalalala'
+OIDC_RP_CLIENT_ID = "lalalalala"
+OIDC_RP_CLIENT_SECRET = "lalalalala"
 
 LOGIN_REDIRECT_URL = "http://localhost:3000/"
 LOGOUT_REDIRECT_URL = "http://localhost:3000/"
@@ -42,4 +42,3 @@ Q_CLUSTER = {
     "orm": "default",
     "sync": True,
 }
-