Az DevCenter Get DevBox Definition doesn't return the details about the definition

### Description

Executing "Get-AzDevCenterAdminDevBoxDefinition -DevCenterName -ResourceGroupName -name returns the: Location, Name, SystemDataCreatedAt, SystemDataCreatedBy, SystemDataCreatedByType, SystemDataLastModifiedAt, SystemDataLastModifiedBy, SystemDataLastModifiedByType" but no information on the devbox definition.

### Issue script & Debug output

```PowerShell
Get-AzDevCenterAdminDevBoxDefinition -DevCenterName -ResourceGroupName -name
```

### Environment data

```PowerShell
Name Value
---- -----
PSVersion 7.4.5
PSEdition Core
GitCommitId 7.4.5
OS Microsoft Windows 10.0.26100
Platform Win32NT
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1
WSManStackVersion 3.0
```

### Module versions

```PowerShell
ModuleType Version PreRelease Name ExportedCommands
---------- ------- ---------- ---- ----------------
Script 3.0.4 Az.Accounts {Add-AzEnvironment, Clear-AzConfig, Clear-AzContext, Clear-AzDefault…}
Script 1.2.0 Az.DevCenter {Connect-AzDevCenterAdminCatalog, Connect-AzDevCenterAdminProjectCatalog, Deploy-AzDevCente…
```

### Error output

_No response_

Start with the Get-AzDevCenterAdminDevBoxDefinition cmdlet and reproduce the command from the issue using the supplied PowerShell and Az.DevCenter versions. Compare the returned fields with the expected DevBox definition details. Done means the cmdlet returns the definition information in addition to its location and system metadata.

Written by the indexing model from the issue text.