GitHub Actions: Use latest stable nixpkgs channel

2020-02-21 00:32:02 +00:00 · 2020-02-21 00:32:02 +00:00 · 1c2ea77920
--- a/.github/workflows/donate.yml
+++ b/.github/workflows/donate.yml
@ -19,5 +19,7 @@ jobs:
        run: |
          curl https://nixos.org/nix/install | sh
          . ~/.nix-profile/etc/profile.d/nix.sh
+          # Use latest stable nixpkgs channel
+          nix-channel --add https://nixos.org/channels/nixos-19.09 nixpkgs
          nix-channel --update
          nix run -f $TOOL -c donate-ci