add stdenv lib needed to locate libstdc++.so.6 in github actions

flake.nix

@@ -11,7 +11,7 @@
   outputs = { self, nixpkgs, flake-utils, poetry2nix }:
     flake-utils.lib.eachDefaultSystem (system:
       let
-        nativeBuildInputs = with pkgs; [ stdenv python3 poetry ];
+        nativeBuildInputs = with pkgs; [ stdenv libgcc python3 poetry ];
         buildInputs = with pkgs; [ ];
 
         # see https://github.com/nix-community/poetry2nix/tree/master#api for more functions and examples.
@@ -33,12 +33,13 @@
           default = pkgs.mkShell {
             packages = nativeBuildInputs ++ buildInputs;
             LD_LIBRARY_PATH = if pkgs.stdenv.isLinux then
-              "${pkgs.stdenv.cc.cc.lib}/lib:/run/opengl-driver/lib:/run/opengl-driver-32/lib:${pkgs.libGL}/lib:/nix/store/2if9iy5cy0bicwafllpa2aiq30v26app-glib-2.78.1/lib"
+              "${pkgs.stdenv.cc.cc.lib}/lib:/run/opengl-driver/lib:/run/opengl-driver-32/lib"
             else
               "$LD_LIBRARY_PATH";
           };
           CI = pkgs.mkShell {
             packages = nativeBuildInputs ++ buildInputs ++ [ pkgs.nodejs_20 ];
+            LD_LIBRARY_PATH = "$LD_LIBRARY_PATH:${pkgs.stdenv.cc.cc.lib}/lib";
           };
         };
       });