fix(instance): fix TestAccScalewayInstanceServer_AlterTags

Author: remyleone

scaleway/resource_instance_server.go

@@ -511,7 +511,12 @@ func resourceScalewayInstanceServerUpdate(ctx context.Context, d *schema.Resourc
 
 	if d.HasChange("tags") {
 		tags := expandStrings(d.Get("tags"))
-		updateRequest.Tags = scw.StringsPtr(tags)
+		if tags == nil {
+			t := []string{}
+			updateRequest.Tags = &t
+		} else {
+			updateRequest.Tags = scw.StringsPtr(tags)
+		}
 	}
 
 	if d.HasChange("security_group_id") {