feature request: allow --version even when not in a jj repo

[bbigras]

❯ jj-fzf --version
Error: There is no jj repo in "."
.jj-fzf-wrapped: **ERROR**: /home/bbigras/tmp: not a JJ repository

It could be useful for packaging. With nixpkgs we often "run" the app/script with --version as a minimum while building the package.

[tim-janik]

❯ jj-fzf --version
Error: There is no jj repo in "."
.jj-fzf-wrapped: ERROR: /home/bbigras/tmp: not a JJ repository

It could be useful for packaging. With nixpkgs we often "run" the app/script with --version as a minimum while building the package.

Yeah, thanks for submitting a Nix packaging request.
I'll definitely make --version work w/o a jj repo at some point, but it'll take some shuffeling.
Will be harder to make it work for --help as well, but ideally both should work.