gcr: remove build gnupg from runtime closure

pkgs/development/libraries/gcr/default.nix

@@ -35,6 +35,8 @@ stdenv.mkDerivation rec {
     sha256 = "u3Eoo8L+u/7pwDuQ131JjQzrI3sHiYAtYBhcccS+ok8=";
   };
 
+  strictDeps = true;
+
   nativeBuildInputs = [
     pkg-config
     meson
@@ -46,7 +48,6 @@ stdenv.mkDerivation rec {
     wrapGAppsHook
     vala
     shared-mime-info
-    gnupg
     openssh
   ];
 
@@ -74,6 +75,7 @@ stdenv.mkDerivation rec {
     # We are still using ssh-agent from gnome-keyring.
     # https://github.com/NixOS/nixpkgs/issues/140824
     "-Dssh_agent=false"
+    "-Dgpg_path=${lib.getBin gnupg}/bin/gpg"
   ] ++ lib.optionals (!systemdSupport) [
     "-Dsystemd=disabled"
   ];