home: add cargo-make package for rust development

home/modules/dev/rust.nix

@@ -12,6 +12,7 @@ in
     home.packages = with pkgs; [
       rustup # contains rustc, cargo, rustdoc, rustfmt, etc.
       cargo-watch # cargo subcommand for watching files and running commands
+      cargo-make # cargo subcommand for running tasks defined in a toml file
     ];
   };
 }