sops: add update script

Signed-off-by: Sefa Eyeoglu <contact@scrumplex.net>

pkgs/tools/security/sops/default.nix

@@ -1,4 +1,4 @@
-{ lib, buildGoModule, fetchFromGitHub }:
+{ lib, buildGoModule, fetchFromGitHub, nix-update-script }:
 
 buildGoModule rec {
   pname = "sops";
@@ -17,6 +17,8 @@ buildGoModule rec {
 
   ldflags = [ "-s" "-w" "-X github.com/getsops/sops/v3/version.Version=${version}" ];
 
+  passthru.updateScript = nix-update-script { };
+
   meta = with lib; {
     homepage = "https://github.com/getsops/sops";
     description = "Simple and flexible tool for managing secrets";