Temporarily re-add nixpkgs-2105.nix file, so enable upgrading to the new path.

7384448d · Tom Prince · 0e180646 · 7384448d
Commit 7384448d authored 3 years ago by Tom Prince
--- a/nixpkgs-2105.nix
+++ b/nixpkgs-2105.nix
+# This actually imports nixos-21.11 but we need to keep this file around so that
+# upgrades work, as the on-node deployment script expects this file in the checkout.
+# See https://whetstone.privatestorage.io/privatestorage/PrivateStorageio/-/merge_requests/222#note_18600
+# This file can be removed once all nodes have been updated to point to the new file.
+
+import ./nixpkgs.nix