az ad app list --all returns some secret names as null

### Describe the bug

Running az ad app list --all will return all of the secrets, but older secrets null for names. Everything else is correct. This is causing some issues when trying to automatically notify app owners of expiring secrets. Confirmed with my coworker that she had the same exact results when running command.

### Related command

az ad app --list all | ConvertFrom-Json

### Errors

No error message, older secret names just don't populate and are $null instead.

### Issue script & Debug output

This would take way too long to remove all secrets data from all returned ad apps in the log

### Expected behavior

All secret names should appear under passwordCredential.displayName.

### Environment Summary

azure-cli 2.53.1

core 2.53.1
telemetry 1.1.0

Extensions:
account 0.2.5
resource-graph 2.1.0

Dependencies:
msal 1.24.0b2
azure-mgmt-resource 23.1.0b2

### Additional context

_No response_