aws-sam-cli nix flake to update to newer version

flake.nix

{
  description = "CLI tool for local development and testing of Serverless applications";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    flake-parts.url = "github:hercules-ci/flake-parts";
  };

  outputs = inputs@{ flake-parts, nixpkgs, ... }:
    flake-parts.lib.mkFlake { inherit inputs; } {
      imports = [];
      systems = [ "x86_64-linux" "aarch64-linux" "aarch64-darwin" "x86_64-darwin" ];
      perSystem = { config, self', inputs', pkgs, system, lib, ... }:
        # Per-system attributes can be defined here. The self' and inputs'
        # module parameters provide easy access to attributes of the same
        # system.
        {
          # The definition of the aws-sam-cli package in nixpkgs is here:
          # https://github.com/NixOS/nixpkgs/blob/master/pkgs/development/tools/aws-sam-cli/default.nix
          packages.default = pkgs.aws-sam-cli.overridePythonAttrs (old: rec {
            # the executable is just "sam"
            pname = "sam";
            version = "1.97.0";

            # Redefine which version (and sha256-sum) to use for the build.
            src = pkgs.python3.pkgs.fetchPypi {
              pname = "aws-sam-cli";
              inherit version;
              hash = "sha256-IEt8JA3iS0ZhaTEKeHNJLKLOOfD2Q3RYZ2Y61upi/xs=";
            };
          });
        };
      flake = {};
    };
}