Microsoft.ManagedIdentity/userAssignedIdentities/federatedIdentityCredentials properties.audiences marked as required

**Bicep version**
Bicep CLI version 0.21.1 (d4acbd2a9f)

**Describe the bug**
Warning BCP035: The specified "object" declaration is missing the following required properties: "audiences". If this is an inaccuracy in the documentation, please report it to the Bicep Team. [https://aka.ms/bicep-type-issues]

Under the azure CLI audiences is optional, is there a reason for this discrepency between CLI and Bicep?
See docs: https://learn.microsoft.com/en-us/cli/azure/identity/federated-credential?view=azure-cli-latest#az-identity-federated-credential-create

**To Reproduce**
Steps to reproduce the behavior:
Create a Microsoft.ManagedIdentity/userAssignedIdentities/federatedIdentityCredentials without a properties.audiences

**Additional context**
None

Start by comparing the Bicep resource type for Microsoft.ManagedIdentity/userAssignedIdentities/federatedIdentityCredentials with the Azure CLI federated-credential-create documentation linked in the issue. Confirm whether properties.audiences is optional in the authoritative definition, then verify that the reproduced declaration no longer produces BCP035.

Written by the indexing model from the issue text.