Microsoft.OperationalInsights/workspaces@2023-09-01: listKeys() intellisense missing

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### Resource Type

Microsoft.OperationalInsights/workspaces

### Api Version

2023-09-01

### Issue Type

Missing property(s)

### Other Notes

`.listKeys()` is missing from VS Code Intellisense
`.listKeys().primarySharedKey` is also missing from Intellisense.
My specific use case was for creating a Container Apps Environment ('Microsoft.App/managedEnvironments@2024-10-02-preview') which needs `properties.logAnalyticsConfiguration.sharedKey` - I found that I could use `.listKeys().primarySharedKey` from this SO article: https://stackoverflow.com/questions/74183142/get-log-analytics-workspace-key-from-bicep

### Bicep Repro

```bicep
@description('Container Environment: Name')
param containerAppsEnvironmentName string

@description('App Insights: Name of log analytics workspace')
param logAnalyticsWorkspaceName string

resource logAnalyticsWorkspace 'Microsoft.OperationalInsights/workspaces@2023-09-01' existing = {
name: logAnalyticsWorkspaceName
}

resource container_apps_environment 'Microsoft.App/managedEnvironments@2024-10-02-preview' = {
name: containerAppsEnvironmentName
location: 'North Europe'
properties: {
appLogsConfiguration: {
destination: 'log-analytics'
logAnalyticsConfiguration: {
customerId: logAnalyticsWorkspace.properties.customerId
dynamicJsonColumns: true
sharedKey: logAnalyticsWorkspace.listKeys().primarySharedKey // PK - intellisense does not recognise // https://stackoverflow.com/questions/74183142/get-log-analytics-workspace-key-from-bicep
}
}
zoneRedundant: false
kedaConfiguration: {}
daprConfiguration: {}
customDomainConfiguration: {}
workloadProfiles: [
{
workloadProfileType: 'Consumption'
name: 'Consumption'
enableFips: false
}
]
peerAuthentication: {
mtls: {
enabled: false
}
}
peerTrafficConfiguration: {
encryption: {
enabled: false
}
}
publicNetworkAccess: 'Enabled'
}
}
```

### Confirm

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

Load the supplied Bicep repro in VS Code and inspect IntelliSense for Microsoft.OperationalInsights/workspaces@2023-09-01. Trace the type definition or entry point responsible for listKeys() and primarySharedKey; done means both members are recognized for the resource and the repro no longer reports missing IntelliSense.

Written by the indexing model from the issue text.