Bump hibernate.version from 5.4.10.Final to 5.6.15.Final#15

dependabot[bot] wants to merge 1 commit intomasterseedstack/jpa-addon:masterfrom

dependabot/maven/hibernate.version-5.6.15.Finalseedstack/jpa-addon:dependabot/maven/hibernate.version-5.6.15.FinalCopy head branch name to clipboard