Merge pull request #297492 from r-ryantm/auto-update/circt

in

stdenv.mkDerivation rec {

  pname = "circt";

  version = "1.68.0";

  version = "1.70.0";

  src = fetchFromGitHub {

    owner = "llvm";

    repo = "circt";

    rev = "firtool-${version}";

    hash = "sha256-N2OpKzniVUqi+L48mD5W1wW1GdECPVWZCo30f4XD3n0=";

    hash = "sha256-OELkfyN0fxnQIGQxfwuRM/+DYdb+8m5wlT/H+eQNjq0=";

    fetchSubmodules = true;

  };