DevCenter - az devcenter dev dev-box list is scoped only to the calling user

### Describe the bug

The documentation for the lab shows that command is how to list all dev boxes in the dev center. However, when actually called it will only show dev boxes that are allocated to the calling user.

`Examples
List all dev boxes in the dev center
az devcenter dev dev-box list --dev-center-name "ContosoDevCenter"`

### Related command

az devcenter dev dev-box list --dev-center-name "ContosoDevCenter"

### Errors

No errors are shown

### Issue script & Debug output

az devcenter dev dev-box list --dev-center-name "ContosoDevCenter"

### Expected behavior

The documentation says all dev boxes in the dev center will be listed.

### Environment Summary

{
"azure-cli": "2.67.0",
"azure-cli-core": "2.67.0",
"azure-cli-telemetry": "1.1.0",
"extensions": {
"desktopvirtualization": "1.0.0",
"devcenter": "6.1.0",
"load": "1.2.0",
"quota": "1.0.0",
"resource-graph": "2.1.0"
}
}

### Additional context

_No response_