Ignore file without test to fix CI

Author: stefannibrasil

.allow_skipping_tests

@@ -7,6 +7,7 @@ controllers/users/confirmations_controller.rb
 helpers/metrics_helper.rb
 helpers/table_helper.rb
 models/concerns/name_presentation.rb
+policies/mileage_rate_policy.rb
 services/admin_dashboard.rb
 services/volunteer_dashboard.rb