IC readonly config endpoints should require client secret
IC readonly config endpoints should require client secret

endpoints:

- /identity/v1alpha/{realm}/identityProviders
- /identity/v1alpha/{realm}/passportTranslators

PiperOrigin-RevId: 293638389
Change-Id: Ic5ca1c984924e63e9676119c45b325779e2b0df3

GoogleCloudPlatform/healthcare-federated-access-services,GoogleCloudPlatform/healthcare-federated-access-services,GoogleCloudPlatform/healthcare-federated-access-services,GoogleCloudPlatform/healthcare-federated-access-services