nixosTests.lxd-image-server: use `stdenv.hostPlatform.system`

`pkgs.system` is an alias

zowoq a231a1f9 6be42bf9

Changed files
+2 -2
nixos
+2 -2
nixos/tests/lxd-image-server.nix
···
};
};
-
lxd-image-metadata = lxd-image.lxdMeta.${pkgs.system};
-
lxd-image-rootfs = lxd-image.lxdImage.${pkgs.system};
+
lxd-image-metadata = lxd-image.lxdMeta.${pkgs.stdenv.hostPlatform.system};
+
lxd-image-rootfs = lxd-image.lxdImage.${pkgs.stdenv.hostPlatform.system};
in {
name = "lxd-image-server";