_experimental-update-script-combinators: rename from update-script-combinators

To make it obvious they are not stable yet.

pkgs/desktops/gnome/core/evolution-data-server/default.nix

···
 , coccinelle
 , pkg-config
 , gnome
-, update-script-combinators
+, _experimental-update-script-combinators
 , python3
 , gobject-introspection
 , gettext
···
           versionPolicy = "odd-unstable";
         };
 
-        updateGsettingsPatch = update-script-combinators.copyAttrOutputToFile "evolution-data-server.hardcodeGsettingsPatch" ./hardcode-gsettings.patch;
+        updateGsettingsPatch = _experimental-update-script-combinators.copyAttrOutputToFile "evolution-data-server.hardcodeGsettingsPatch" ./hardcode-gsettings.patch;
       in
-      update-script-combinators.sequence [
+      _experimental-update-script-combinators.sequence [
         updateSource
         updateGsettingsPatch
       ];

pkgs/top-level/all-packages.nix

···
 
   genericUpdater = callPackage ../common-updater/generic-updater.nix { };
 
-  update-script-combinators = callPackage ../common-updater/combinators.nix { };
+  _experimental-update-script-combinators = callPackage ../common-updater/combinators.nix { };
 
   gitUpdater = callPackage ../common-updater/git-updater.nix { };