ci nixos: switch container image tag

Unfortunately the `latest` tag is amd64 only right now,
even though it did have both recently. I hope this will work reliably.

diff --git a/ci/pkgtest.yaml b/ci/pkgtest.yaml
index b7b87c35d1184d4ce6ef387e4cec2ad7b64406a3..2ac4d4cf94bc2af45046aac0bd2dc3f979665f5f 100644 (file)
--- a/ci/pkgtest.yaml
+++ b/ci/pkgtest.yaml
@@ -119,7 +119,8 @@ nixos-unstable:pkgbuild:
     - docker
     - linux
     - ${PLATFORM}
-  image: nixos/nix
+  # https://github.com/NixOS/nix/issues/10648#issuecomment-2101993746
+  image: docker.io/nixos/nix:latest-${PLATFORM}
 
   variables:
     NIX_PATH: nixpkgs=https://github.com/nixos/nixpkgs/archive/nixos-unstable.tar.gz