nix: update ftditool to 0.4.0, regenerate flake

Signed-off-by: Alice Ziuziakowska <a.ziuziakowska@lowrisc.org>

Author: ziuziakowska

flake.lock

@@ -24,7 +24,7 @@
       inputs.uv2nix.follows = "uv2nix";
     };
     ftditool = {
-      url = "github:lowRISC/ftditool?ref=v0.3.1";
+      url = "github:lowRISC/ftditool?ref=v0.4.0";
       inputs.nixpkgs.follows = "nixpkgs";
     };
   };