Switch Livebook from erlang 27 full to erlang 28 minimal (#428666)

pkgs/by-name/li/livebook/package.nix

@@ -1,21 +1,21 @@
 {
   lib,
-  beamPackages,
+  beamMinimal28Packages,
   makeWrapper,
-  rebar3,
-  elixir,
-  erlang,
   fetchFromGitHub,
   nixosTests,
   nix-update-script,
 }:
+let
+  beamPackages = beamMinimal28Packages;
+in
 beamPackages.mixRelease rec {
   pname = "livebook";
   version = "0.16.4";
 
-  inherit elixir;
+  inherit (beamPackages) elixir;
 
-  buildInputs = [ erlang ];
+  buildInputs = [ beamPackages.erlang ];
 
   nativeBuildInputs = [ makeWrapper ];
 
@@ -36,11 +36,11 @@ beamPackages.mixRelease rec {
     wrapProgram $out/bin/livebook \
       --prefix PATH : ${
         lib.makeBinPath [
-          elixir
-          erlang
+          beamPackages.elixir
+          beamPackages.erlang
         ]
       } \
-      --set MIX_REBAR3 ${rebar3}/bin/rebar3
+      --set MIX_REBAR3 ${beamPackages.rebar3}/bin/rebar3
   '';
 
   passthru = {