github: don't override nixpkgs version (use the lock file's version)
I don't know what it was overridden here, but it meant that CI didn't
notice that the package was broken
@@ -21,4 +21,4 @@ jobs:
with:
extra_nix_config: |
experimental-features = nix-command flakes
- - run: nix flake check --print-build-logs --show-trace --override-input nixpkgs github:NixOS/nixpkgs
+ - run: nix flake check --print-build-logs --show-trace
