add authModuleKeycloakOIDCProvider to backend

packages/backend/src/index.ts

@@ -1,5 +1,6 @@
 import { createBackend } from '@backstage/backend-defaults';
 import { cnoeScaffolderActions } from './plugins/scaffolder';
+import { authModuleKeycloakOIDCProvider } from './plugins/auth';
 
 const backend = createBackend();
 
@@ -38,6 +39,7 @@ backend.add(
 );
 
 // cnoe plugins
+backend.add(authModuleKeycloakOIDCProvider);
 backend.add(cnoeScaffolderActions);
 
 backend.start();