CLDC-4071: update export service

spec/fixtures/exports/user.xml

@@ -9,7 +9,7 @@
     <last_sign_in_at>2022-03-03T00:00:00+00:00</last_sign_in_at>
     <role>data_provider</role>
     <phone>1234512345123</phone>
-    <extension_number>ext. 123</extension_number>
+    <extension_number>123</extension_number>
     <is_dpo>false</is_dpo>
     <is_key_contact>false</is_key_contact>
     <active>true</active>

spec/services/exports/user_export_service_spec.rb

@@ -45,7 +45,7 @@ RSpec.describe Exports::UserExportService do
     end
 
     context "and one user is available for export" do
-      let!(:user) { create(:user, organisation:, name: "Danny Rojas", phone_extension: "ext. 123", last_sign_in_at: Time.zone.local(2022, 3, 3)) }
+      let!(:user) { create(:user, organisation:, name: "Danny Rojas", phone_extension: "123", last_sign_in_at: Time.zone.local(2022, 3, 3)) }
 
       it "generates a ZIP export file with the expected filename" do
         expect(storage_service).to receive(:write_file).with(expected_zip_filename, any_args)