アイヌ語追加 (#428) (#433)

Reviewed-on: #433
Co-authored-by: miteruzo <miteruzo@naver.com>

backend/spec/requests/wiki_spec.rb

@@ -6,7 +6,7 @@ require 'securerandom'
 RSpec.describe 'Wiki API', type: :request do
   include WikiRecords
   def auth_headers(user)
-    { 'X-Transfer-Code' => user.inheritance_code }
+    cookie_headers(user)
   end
 
   let!(:user) { create_member_user! }
@@ -80,7 +80,7 @@ RSpec.describe 'Wiki API', type: :request do
     let(:guest) { create(:user, role: 'guest') }
 
     def auth_headers(user)
-      { 'X-Transfer-Code' => user.inheritance_code }
+      cookie_headers(user)
     end
 
     context 'when not logged in' do
@@ -126,7 +126,7 @@ RSpec.describe 'Wiki API', type: :request do
     let(:guest)  { create(:user, role: 'guest',  inheritance_code: SecureRandom.hex(16)) }
 
     def auth_headers(user)
-      { 'X-Transfer-Code' => user.inheritance_code }
+      cookie_headers(user)
     end
 
     let!(:test_tag_name) { create(:tag, primary_name: 'TestPage').tag_name('ja') }