Disable Local Auth on Azure LogAnalyticsWorkspace

We have a goal to disable local auth by default in our Azure integrations and only use managed identity.

`AddAzureLogAnalyticsWorkspace` should set the `OperationalInsightsWorkspace` to have `Features.IsLocalAuthDisabled=true` by default.

https://learn.microsoft.com/en-us/azure/templates/microsoft.operationalinsights/workspaces?pivots=deployment-language-bicep#resource-format

https://github.com/dotnet/aspire/blob/fe64638b9f7bd1f1e3a5ad704f00cf72b24e5162/src/Aspire.Hosting.Azure.OperationalInsights/AzureLogAnalyticsWorkspaceExtensions.cs#L38-L45

We should also disable local auth when we create a Log Analytics Workspace for ACA:

https://github.com/dotnet/aspire/blob/fe64638b9f7bd1f1e3a5ad704f00cf72b24e5162/src/Aspire.Hosting.Azure.AppContainers/AzureContainerAppExtensions.cs#L133-L137

This may require changes to docs or other code.

When doing this, we should verify that ACA and Application Insights works out of the box. If code changes are needed we should add them to our docs.