Bump hibernate-validator from 5.1.3.Final to 5.3.5.Final in /library-service-rest-frontend#1

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dependabot/maven/library-service-rest-frontend/org.hibernate-hibernate-validator-5.3.5.FinalApolloDev/apollo-library-services:dependabot/maven/library-service-rest-frontend/org.hibernate-hibernate-validator-5.3.5.FinalCopy head branch name to clipboard