fix: add missing require

fixes: pact-foundation#305

Author: bethesque

lib/pact_broker/matrix/repository.rb

@@ -6,6 +6,8 @@
 require 'pact_broker/matrix/integration'
 require 'pact_broker/matrix/query_results_with_deployment_status_summary'
 require 'pact_broker/matrix/resolved_selector'
+require 'pact_broker/verifications/latest_verification_id_for_pact_version_and_provider_version'
+require 'pact_broker/pacts/latest_pact_publications_by_consumer_version'
 
 module PactBroker
   module Matrix