Microsoft.Web/sites/extensions: onedeploy properties are valid

### Resource Type

Microsoft.Web/sites/extensions

### Api Version

2023-12-01

### Issue Type

Missing property(s)

### Other Notes

When deploying code to an app service using onedeploy, bicep insists that properties are not valid on the resource type: `The property "properties" does not exist in the resource or type definition, although it might still be valid. If this is an inaccuracy in the documentation, please report it to the Bicep Team.`

This is in line with the [current docs for the resource provider](https://learn.microsoft.com/en-us/azure/templates/microsoft.web/sites/extensions-onedeploy?pivots=deployment-language-bicep
). However, this is not accurate. You need to provide properties in order to make the deployment work (see bicep repro)

### Bicep Repro

```
resource appService 'Microsoft.Web/sites@2023-12-01' = {
name: 'myAppService'
location: resourceGroup().location
properties: {
serverFarmId: 'myHostingPlanId'
siteConfig: {
netFrameworkVersion: 'v8.0'
alwaysOn: true
}
}
}

resource deployCode 'Microsoft.Web/sites/extensions@2023-12-01' = {
name: 'onedeploy'
parent: appService
properties: {
packageUri: 'myZipPath'
type: 'zip'
}
}
```

### Confirm

- [X] I have read the troubleshooting guide and looked for duplicates.

Start with the Microsoft.Web/sites/extensions resource type at API version 2023-12-01 and compare its Bicep definition with the linked provider documentation and the repro. Verify how the onedeploy extension represents packageUri and type, then confirm that a resource using properties is accepted and deploys successfully.

Written by the indexing model from the issue text.