tools: update nixpkgs-unstable to 3cbe716

Author: nodejs-github-bot

tools/nix/pkgs.nix

@@ -1,10 +1,10 @@
 arg:
 let
   repo = "https://github.com/NixOS/nixpkgs";
-  rev = "ca77296380960cd497a765102eeb1356eb80fed0";
+  rev = "3cbe716e2346710d6e1f7c559363d14e11c32a43";
   nixpkgs = import (builtins.fetchTarball {
     url = "${repo}/archive/${rev}.tar.gz";
-    sha256 = "1airrw6l87iyny1a3mb29l28na4s4llifprlgpll2na461jd40iy";
+    sha256 = "08qnqhkcvpk2zhfsnf4k3ipcqbncmq1iv3qpfjwzrkq0l0mvky17";
   }) arg;
 in
 nixpkgs