tools: fix --shared-ffi compilation on macOS

PR-URL: #62737
Refs: https://github.com/NixOS/nixpkgs/blob/13043924aaa7375ce482ebe2494338e058282925/pkgs/top-level/all-packages.nix#L6695-L6698
Reviewed-By: Filip Skokan <panva.ip@gmail.com>
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
Reviewed-By: Paolo Insogna <paolo@cowtech.it>
Reviewed-By: Chemi Atlow <chemi@atlow.co.il>

Author: aduh95

tools/nix/sharedLibDeps.nix

@@ -48,7 +48,7 @@
   inherit (pkgs) sqlite;
 })
 // (pkgs.lib.optionalAttrs withFFI {
-  ffi = pkgs.libffi;
+  ffi = pkgs.libffiReal;
 })
 // (pkgs.lib.optionalAttrs withSSL (
   let