Merge pull request #44585 from symphorien/osquery-platform

osquery: do not rebuild at each nixpkgs commit

pkgs/tools/system/osquery/default.nix

···
 
   # this is what `osquery --help` will show as the version.
   OSQUERY_BUILD_VERSION = version;
-  OSQUERY_PLATFORM = "nixos;${stdenv.lib.version}";
+  OSQUERY_PLATFORM = "NixOS;";
 
   src = fetchFromGitHub {
     owner = "facebook";