rofi-bluetooth: add updateScript (#474660)

pkgs/by-name/ro/rofi-bluetooth/package.nix

@@ -5,6 +5,7 @@
   makeWrapper,
   bc,
   bluez,
+  unstableGitUpdater,
 }:
 
 stdenv.mkDerivation {
@@ -37,6 +38,8 @@ stdenv.mkDerivation {
     runHook postInstall
   '';
 
+  passthru.updateScript = unstableGitUpdater { };
+
   meta = {
     description = "Rofi-based interface to connect to bluetooth devices and display status info";
     homepage = "https://github.com/nickclyde/rofi-bluetooth";