Update api-version of container group

azurerm/internal/services/containers/client/client.go

@@ -1,7 +1,7 @@
 package client
 
 import (
-	"github.com/Azure/azure-sdk-for-go/services/containerinstance/mgmt/2018-10-01/containerinstance"
+	"github.com/Azure/azure-sdk-for-go/services/containerinstance/mgmt/2019-12-01/containerinstance"
 	"github.com/Azure/azure-sdk-for-go/services/containerregistry/mgmt/2018-09-01/containerregistry"
 	"github.com/Azure/azure-sdk-for-go/services/containerservice/mgmt/2020-04-01/containerservice"
 	"github.com/Azure/go-autorest/autorest/azure"

azurerm/internal/services/containers/container_group_resource.go

@@ -8,7 +8,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/Azure/azure-sdk-for-go/services/containerinstance/mgmt/2018-10-01/containerinstance"
+	"github.com/Azure/azure-sdk-for-go/services/containerinstance/mgmt/2019-12-01/containerinstance"
 	"github.com/Azure/azure-sdk-for-go/services/network/mgmt/2020-05-01/network"
 	"github.com/hashicorp/terraform-plugin-sdk/helper/hashcode"
 	"github.com/hashicorp/terraform-plugin-sdk/helper/resource"
@@ -603,14 +603,13 @@ func resourceArmContainerGroupDelete(d *schema.ResourceData, meta interface{}) e
 		}
 	}
 
-	resp, err := client.Delete(ctx, resourceGroup, name)
+	future, err := client.Delete(ctx, resourceGroup, name)
 	if err != nil {
-		if utils.ResponseWasNotFound(resp.Response) {
-			return nil
-		}
-
 		return fmt.Errorf("Error deleting Container Group %q (Resource Group %q): %+v", name, resourceGroup, err)
 	}
+	if err := future.WaitForCompletionRef(ctx, client.Client); err != nil {
+		return fmt.Errorf("Error waiting for deletion of Container Group %q (Resource Group %q): %+v", name, resourceGroup, err)
+	}
 
 	if networkProfileId != "" {
 		parsedProfileId, err := azure.ParseAzureResourceID(networkProfileId)