update release date in changelog (#1665)
update release date in changelog (#1665)


CiscoCloud/mantl,bitium/mantl,sehqlr/mantl,CiscoCloud/microservices-infrastructure,sehqlr/mantl,datascienceinc/mantl,bitium/mantl,phnmnl/mantl,KaGeN101/mantl,datascienceinc/mantl,mantl/mantl,mantl/mantl,KaGeN101/mantl,CiscoCloud/microservices-infrastructure,CiscoCloud/mantl,phnmnl/mantl