Unable to create azurerm_managed_disk when set " storage_account_type = "PremiumV2_LRS" "

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Terraform Version

1.0.0

### Provider Version

0.1.0

### Current Behavior

I want to create disk for my vm，and set disk sku to PremiumV2_LRS; I saw the azurerm_managed_disk document , found the field storage_account_type support PremiumV2_LRS (see https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/managed_disk#storage_account_type)

so I write my iac script , to create a disk，but when i plan this script, i got a error "Error: expected storage_account_type to be one of [Standard_LRS StandardSSD_ZRS Premium_LRS Premium_ZRS StandardSSD_LRS UltraSSD_LRS], got PremiumV2_LRS"

### Expected Behavior

Create a PremiumV2_LRS disk sccuess

### Terraform configuration

```terraform
resource "azurerm_managed_disk" "copy" {
name = "acctestmd2"
location = azurerm_resource_group.example.location
resource_group_name = azurerm_resource_group.example.name
storage_account_type = "PremiumV2_LRS"
create_option = "Copy"
source_resource_id = azurerm_managed_disk.source.id
disk_size_gb = "1"

tags = {
environment = "staging"
}
}
```

### Steps To Reproduce

terraform plan

### Anything else?


Start by reproducing the reported terraform plan with the provided azurerm_managed_disk configuration and compare the provider's accepted storage_account_type values with the linked documentation. Trace the validation entry point for this resource and add or update coverage for PremiumV2_LRS; done means the plan accepts the value and creates the disk successfully.

Written by the indexing model from the issue text.