defaultSupportedIdpConfigs.list is not implemented in the Auth Emulator

* Operating System version: Ubuntu 22.04
* Firebase SDK version: 11.29.1
* Library version: firebase.google.com/go/v4 v4.11.0
* Firebase Product: emulators:auth

#### Steps to reproduce:

Using the Go SDK, I created a tenant, enabled the "google.com" auth provider and added a user to it. I then tried listing the configured providers for the users with a GET to the following endpoint
```
http://127.0.0.1:33167/identitytoolkit.googleapis.com/v2/projects/[tenantID]/defaultSupportedIdpConfigs?key=[apikey]
```
But receive:
```
error:501 message:identitytoolkit.projects.defaultSupportedIdpConfigs.list is not implemented in the Auth Emulator. reason:unimplemented
```
How can I list the enabled providers for a particular tenant/user?

Thanks in advance.