tools: update nixpkgs-unstable to f997fa0f94fb1ce55bccb97f60d41412ae8

Author: nodejs-github-bot

tools/nix/pkgs.nix

@@ -1,10 +1,10 @@
 arg:
 let
   repo = "https://github.com/NixOS/nixpkgs";
-  rev = "a672be65651c80d3f592a89b3945466584a22069";
+  rev = "f997fa0f94fb1ce55bccb97f60d41412ae8fde4c";
   nixpkgs = import (builtins.fetchTarball {
     url = "${repo}/archive/${rev}.tar.gz";
-    sha256 = "1p2g7g9vlpv14xz6rrlb8i6w8sxki8i35m15phjiwfrqaf6x508i";
+    sha256 = "16x3n08n0ffqn8m2h73vk2wr0ssa8lsfvq2yc1gfd59gsss47n3m";
   }) arg;
 in
 nixpkgs