Ensure extensions are not installed on Azure Windows Virtual Machine

Extensions are installed in Azure Windows Virtual Machine, they may make virtual machines vulnerable.

In Azure Console -

1. Open the Azure Portal and go to Virtual Machines.
2. Choose the Virtual Machine you wish to edit.
3. Under Settings, select Extensions + applications.
4. Select the extension and choose Uninstall.

In Terraform -

1. In the azurerm_windows_virtual_machine resource, set allow_extension_operations to false.
2. Set provision_vm_agent to false.

References:
https://learn.microsoft.com/en-us/azure/virtual-machines/extensions/overview
https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/windows_virtual_machine#allow_extension_operations