do not specify ghc version for auto update

fixes #457

Author: expipiplus1

.github/workflows/auto-update.yml

@@ -44,7 +44,7 @@ jobs:
 
     - name: Build dependencies
       run: |
-        nix-build --argstr compiler ghc8107 -A generate-new
+        nix-build -A generate-new
         nix-build '<nixpkgs>' -A python3 -A python3Packages.pyparsing -A asciidoctor -A gnumake -A nodejs -A nodePackages.he -A nodePackages.escape-string-regexp
         nix-build '<nixpkgs>' -A haskellPackages.hpack
         nix-build '<nixpkgs>' -A doxygen