Self contained nix package

Right now the tool download deps in runtime

```
(deps/add-deps '{:deps {io.github.borkdude/parmezan {:git/sha "39a978daffc025aceeed6a8ea2acaabbba901154"}}})
```

It'd be great if a self contained package is provided instead of letting it downloading stuff on running.

I think bb uberjar appoach can be used for this purpose.