Apply automatic rubocop fixes

spec/policies/consumer_policy_spec.rb

@@ -1,13 +1,15 @@
+# frozen_string_literal: true
+
 require 'rails_helper'
 
 describe ConsumerPolicy do
   subject { described_class }
 
-  [:create?, :destroy?, :edit?, :index?, :new?, :show?, :update?].each do |action|
+  %i[create? destroy? edit? index? new? show? update?].each do |action|
     permissions(action) do
       it 'grants access to admins only' do
         expect(subject).to permit(FactoryBot.build(:admin), Consumer.new)
-        [:external_user, :teacher].each do |factory_name|
+        %i[external_user teacher].each do |factory_name|
           expect(subject).not_to permit(FactoryBot.build(factory_name), Consumer.new)
         end
       end