gitignore: ignore annoying ansible .retry files (#1704)
gitignore: ignore annoying ansible .retry files (#1704)


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