Use natural delegate typing

Author: jnm2

src/TfvcMigrator/Program.cs

@@ -36,8 +36,7 @@ public static Task Main(string[] args)
             new Option<string?>("--pat") { Description = "Optional PAT, required to access TFVC repositories hosted on Azure DevOps Services. If not provided Default Client Credentials will be used, these are only suitable for on-premise TFS/Azure DevOps Server." },
         };
 
-        command.Handler = CommandHandler.Create(
-            new Func<Uri, string, string, string?, int?, int?, ImmutableArray<RootPathChange>, string?, Task>(MigrateAsync));
+        command.Handler = CommandHandler.Create(MigrateAsync);
 
         return command.InvokeAsync(args);
     }