Add FactoryBot/ConsistentParenthesesStyle rule

This rule was added in rubocop-rspec 2.14.0. We were already applying it
most of the time.

spec/models/dashboard/executed_action_spec.rb

@@ -1,8 +1,8 @@
 require "rails_helper"
 
 describe Dashboard::ExecutedAction do
-  let(:proposal) { create :proposal }
-  let(:action) { create :dashboard_action, request_to_administrators: true }
+  let(:proposal) { create(:proposal) }
+  let(:action) { create(:dashboard_action, request_to_administrators: true) }
 
   it "is invalid when proposal is nil" do
     action = build(:dashboard_executed_action, proposal: nil)