Autofix Rubocop RSpec/LeadingSubject (#23670)

spec/services/fan_out_on_write_service_spec.rb

@@ -1,6 +1,8 @@
 require 'rails_helper'
 
 RSpec.describe FanOutOnWriteService, type: :service do
+  subject { described_class.new }
+
   let(:last_active_at) { Time.now.utc }
   let(:status) { Fabricate(:status, account: alice, visibility: visibility, text: 'Hello @bob #hoge') }
 
@@ -8,8 +10,6 @@ RSpec.describe FanOutOnWriteService, type: :service do
   let!(:bob)   { Fabricate(:user, current_sign_in_at: last_active_at, account_attributes: { username: 'bob' }).account }
   let!(:tom)   { Fabricate(:user, current_sign_in_at: last_active_at).account }
 
-  subject { described_class.new }
-
   before do
     bob.follow!(alice)
     tom.follow!(alice)