AZ Deployment Group What-If -- Azure Bicep Output Not Produced For Modules with Dependencies

## Describe the bug
When using `az deployment group what-if` with Azure Bicep templates that are called via modules, only modules without any dependencies actually produce/show their output (ie. what will be created). All other resources are not listed, giving the incorrect assumption that they will not be created.

**Command Name**
`az deployment group what-if --resource-group GHES-aermie --template-file main.bicep`

## To Reproduce:
Steps to reproduce the behavior. Note that argument values have been redacted, as they may contain sensitive information.

### Sample Bicep code

``` bicep
module nsgModule './nsg.bicep' = {
name: 'nsgDeploy'
params: {
accountPrefix: accountPrefix
location: location
tags: tags
}
}

module vnetModule './vnet.bicep' = {
name: 'vnetDeploy'
params: {
accountPrefix: accountPrefix
location: location
tags: tags
addressPrefix: addressPrefix
ghes_subnetPrefix: ghes_subnetPrefix
runners_subnetPrefix: runners_subnetPrefix
ghes_nsgID: nsgModule.outputs.networkSecurityGroup_ID_GHES
runners_nsgID: nsgModule.outputs.networkSecurityGroup_ID_Runners
}
}

output networkSecurityGroup_ID_GHES string = nsgModule.outputs.networkSecurityGroup_ID_GHES
output networkSecurityGroup_Name_GHES string = nsgModule.outputs.networkSecurityGroup_Name_GHES
output networkSecurityGroup_Location_GHES string = nsgModule.outputs.networkSecurityGroup_Location_GHES
output networkSecurityGroup_SecurityRules_GHES string = nsgModule.outputs.networkSecurityGroup_SecurityRules_GHES
output networkSecurityGroup_ID_Runners string = nsgModule.outputs.networkSecurityGroup_ID_Runners
output networkSecurityGroup_Name_Runners string = nsgModule.outputs.networkSecurityGroup_Name_Runners
output networkSecurityGroup_Location_Runners string = nsgModule.outputs.networkSecurityGroup_Location_Runners
output networkSecurityGroup_SecurityRules_Runners string = nsgModule.outputs.networkSecurityGroup_SecurityRules_Runners

output virtualNetwork_Name string = vnetModule.outputs.virtualNetwork_Name
output virtualNetwork_Location string = vnetModule.outputs.virtualNetwork_Location
output virtualNetwork_AddressPrefix string = vnetModule.outputs.virtualNetwork_AddressPrefix
output virtualNetwork_SubnetAddressPrefix_GHES string = vnetModule.outputs.virtualNetwork_SubnetAddressPrefix_GHES
output virtualNetwork_SubnetAddressPrefix_Runners string = vnetModule.outputs.virtualNetwork_SubnetAddressPrefix_Runners
```

## Expected Behavior
From the above-listed Bicep example, output for both the NSG and VNET is expected, but only output for the NSG is produced.

## Environment Summary
```
Windows-10-10.0.19041-SP0
Python 3.8.9
Installer: MSI

azure-cli 2.27.1

Extensions:
aks-preview 0.5.25
portal 0.1.2

```
## Additional Context

It may be related to Issue #19308