chore: Enable the new Rubocop rules (#7122)

fixes: https://linear.app/chatwoot/issue/CW-1574/renable-the-disabled-rubocop-rules

spec/services/instagram/send_on_instagram_service_spec.rb

@@ -48,7 +48,7 @@ describe Instagram::SendOnInstagramService do
             }
           )
 
-          response = ::Instagram::SendOnInstagramService.new(message: message).perform
+          response = described_class.new(message: message).perform
 
           expect(response).to eq({  message_id: 'anyrandommessageid1234567890' })
         end
@@ -56,9 +56,9 @@ describe Instagram::SendOnInstagramService do
         it 'if message with attachment is sent from chatwoot and is outgoing' do
           message = build(:message, message_type: 'outgoing', inbox: instagram_inbox, account: account, conversation: conversation)
           attachment = message.attachments.new(account_id: message.account_id, file_type: :image)
-          attachment.file.attach(io: File.open(Rails.root.join('spec/assets/avatar.png')), filename: 'avatar.png', content_type: 'image/png')
+          attachment.file.attach(io: Rails.root.join('spec/assets/avatar.png').open, filename: 'avatar.png', content_type: 'image/png')
           message.save!
-          response = ::Instagram::SendOnInstagramService.new(message: message).perform
+          response = described_class.new(message: message).perform
 
           expect(response).to eq({ message_id: 'anyrandommessageid1234567890' })
         end
@@ -87,7 +87,8 @@ describe Instagram::SendOnInstagramService do
             }
           )
 
-          ::Instagram::SendOnInstagramService.new(message: message).perform
+          described_class.new(message: message).perform
+          expect(HTTParty).to have_received(:post)
         end
       end
     end