Patch nixpkgs using cherry-picks without local clone

[doronbehar]

Interesting workflow for patching Nixpkgs! I too created such a workflow and shared it here:

GitHub actions to update your Nixpkgs fork with PRs' patches

Motivation After a few small dissatisfactions from nixpkgs-patcher by @gepbird, and after encountering substantial issues with nix-patcher, I created a setup that avoids many of the drawbacks of the above two solutions. This solution is based upon a periodic GH action that runs on your fork of Nixpkgs. It updates a branch on your fork called channel/personal-stable (name can be changed of course) with commits from PRs listed in the GH action’s workflow yml file. With this branch, you can use th…