Apply manual rubocop fixes

spec/policies/execution_environment_policy_spec.rb

@@ -3,22 +3,22 @@
 require 'rails_helper'
 
 describe ExecutionEnvironmentPolicy do
-  subject { described_class }
+  subject(:policy) { described_class }
 
   let(:execution_environment) { FactoryBot.build(:ruby) }
 
   [:index?].each do |action|
     permissions(action) do
       it 'grants access to admins' do
-        expect(subject).to permit(FactoryBot.build(:admin), execution_environment)
+        expect(policy).to permit(FactoryBot.build(:admin), execution_environment)
       end
 
       it 'grants access to teachers' do
-        expect(subject).to permit(FactoryBot.build(:teacher), execution_environment)
+        expect(policy).to permit(FactoryBot.build(:teacher), execution_environment)
       end
 
       it 'does not grant access to external users' do
-        expect(subject).not_to permit(FactoryBot.build(:external_user), execution_environment)
+        expect(policy).not_to permit(FactoryBot.build(:external_user), execution_environment)
       end
     end
   end
@@ -26,16 +26,16 @@ describe ExecutionEnvironmentPolicy do
   %i[execute_command? shell? statistics? show?].each do |action|
     permissions(action) do
       it 'grants access to admins' do
-        expect(subject).to permit(FactoryBot.build(:admin), execution_environment)
+        expect(policy).to permit(FactoryBot.build(:admin), execution_environment)
       end
 
       it 'grants access to authors' do
-        expect(subject).to permit(execution_environment.author, execution_environment)
+        expect(policy).to permit(execution_environment.author, execution_environment)
       end
 
       it 'does not grant access to all other users' do
         %i[external_user teacher].each do |factory_name|
-          expect(subject).not_to permit(FactoryBot.build(factory_name), execution_environment)
+          expect(policy).not_to permit(FactoryBot.build(factory_name), execution_environment)
         end
       end
     end
@@ -44,16 +44,16 @@ describe ExecutionEnvironmentPolicy do
   %i[destroy? edit? update? new? create?].each do |action|
     permissions(action) do
       it 'grants access to admins' do
-        expect(subject).to permit(FactoryBot.build(:admin), execution_environment)
+        expect(policy).to permit(FactoryBot.build(:admin), execution_environment)
       end
 
       it 'does not grant access to authors' do
-        expect(subject).not_to permit(execution_environment.author, execution_environment)
+        expect(policy).not_to permit(execution_environment.author, execution_environment)
       end
 
       it 'does not grant access to all other users' do
         %i[external_user teacher].each do |factory_name|
-          expect(subject).not_to permit(FactoryBot.build(factory_name), execution_environment)
+          expect(policy).not_to permit(FactoryBot.build(factory_name), execution_environment)
         end
       end
     end