Retrieve the list of authenticator clients.

Retrieve the list of authenticator clients for IBM Verify instances or custom mobile authenticators that are built from the IBM Verify SDK.

Authenticator clients provide the ability to configure specific access controls of an OAuth grant for authenticator registrations that are associated with it.

Entitlements:
- manageAuthenticatorsConfig (Manage authenticator configuration)
- readAuthenticatorsConfig (Read authenticator configuration)