bundlerUpdateScript: don't run bundler-audit

Blocking updates on security warnings doesn't make sense; if an updated
gem has dependencies with security warnings, then it's likely for the
un-updated gem to have even more of them.

pkgs/development/ruby-modules/bundler-update-script/default.nix

···
-{ runtimeShell, lib, writeScript, bundix, bundler, bundler-audit, coreutils, git, nix }:
+{ runtimeShell, lib, writeScript, bundix, bundler, coreutils, git, nix }:
 
 attrPath:
 
 let
   updateScript = writeScript "bundler-update-script" ''
     #!${runtimeShell}
-    PATH=${lib.makeBinPath [ bundler bundler-audit bundix coreutils git nix ]}
+    PATH=${lib.makeBinPath [ bundler bundix coreutils git nix ]}
     set -o errexit
     set -o nounset
     set -o pipefail
···
     cd "$gemdir"
 
     bundler lock --update
-    bundler-audit check --update
     bundix
   '';
 in [ updateScript attrPath ]