Luarocks nix bump

[teto]

Motivation for this change

According to #68158, it seems like update-luarocks-packages will return different urls depending on the mirror hit.
I've thus proceeded to rebase luarocks-nix on top of the new luarocks-release 3.2.1 #68201 and added support for the generation of
mirror://luarocks/<PACKAGE_NAME> when possible.
The updater will also now look into a specific LUAROCKS_CONFIG to prevent outside impurities.
It allows to set some settings to let it perform better.

I've successfully regenerated a pkgs/development/lua-modules/generated-packages.nix with this.
Seems like package installation works with the new mirror://luarocks uris. (except for penlight).
I haven't submitted the pkgs/development/lua-modules/generated-packages.nix changes, I prefer to let it update itself little by little :)

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nix-review --run "nix-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Determined the impact on package closure size (by running nix path-info -S before and after)
• Ensured that relevant documentation is up to date
• Fits CONTRIBUTING.md.

Notify maintainers

cc @

[teto]

CC @Shados . while running the update script I had a few issues because parallel tends to hide the error. I just see:

parallel: This job failed:
convert_pkg cyrussasl '' '' '' '' vcunat
*** error 1: tee -a "$TMP_FILE".

without being able to retrieve the error message. I don't know parallel but I wondered if the situation could be improved ?

[Shados]

@teto the way parallel is set up, it should still output all the stdout/stderr for the called function, but it will do so in the order that the calls are made, so you may need to scrollback a bit to find the output for the failing call.

[teto]

cc @doronbehar since you are a lua user :)

[teto]

due to moving luarocks-nix to nix-community, luarocks-nix is broken in nixpkgs so I will merge this since in my tests it work. If there is an issue, I will fix it.