make dependency_order_cop a regular audit

Library/Homebrew/rubocops/dependency_order_cop.rb

@@ -2,7 +2,7 @@ require "rubocops/extend/formula_cop"
 
 module RuboCop
   module Cop
-    module NewFormulaAudit
+    module FormulaAudit
       # This cop checks for correct order of `depends_on` in a Formula
       #
       # precedence order:

Library/Homebrew/test/rubocops/dependency_order_cop_spec.rb

@@ -1,6 +1,6 @@
 require "rubocops/dependency_order_cop"
 
-describe RuboCop::Cop::NewFormulaAudit::DependencyOrder do
+describe RuboCop::Cop::FormulaAudit::DependencyOrder do
   subject(:cop) { described_class.new }
 
   context "depends_on" do