fix(forgejo-runners): Let the shell handle colmena

machines/storage01/forgejo-runners.nix

@@ -1,10 +1,4 @@
-{
-  config,
-  pkgs,
-  nixpkgs,
-  sources,
-  ...
-}:
+{ config, pkgs, ... }:
 
 let
   url = "https://git.dgnum.eu";
@@ -30,8 +24,6 @@ let
         options = "--cpus=4";
       };
     };
-
-  nix-pkgs = import sources.nix-pkgs { inherit pkgs; };
 in
 {
   services.forgejo-nix-runners = {
@@ -43,10 +35,8 @@ in
     tokenFile = config.age.secrets."forgejo_runners-token_file".path;
 
     dependencies = [
-      nix-pkgs.colmena
       pkgs.npins
       pkgs.tea
-      nixpkgs.unstable.nixfmt-rfc-style
     ];
 
     containerOptions = [ "--cpus=4" ];