cpanato: [go1.16] Update to go1.16.8

JobBuild
6562be29
09-10 13:46
104906
09-10 13:38
3b89fc3b
09-10 13:37
pull-kubernetes-conformance-kind-ga-only-parallel 1437924293689217024 1436325089338462208 1436322857146650624
pull-kubernetes-conformance-kind-ipv6-parallel 1436325085563588608 1436322855775113216
pull-kubernetes-dependencies 1437924292879716352 1436325074666786816 1436322855590563840
pull-kubernetes-e2e-gce-100-performance 1437924292854550528 1436325072980676608 1436322855565398016
pull-kubernetes-e2e-gce-ubuntu-containerd 1437924292783247360 1436325071214874624 1436322855494094848
pull-kubernetes-e2e-kind 1437924293022322688 1436325077174980608 1436322855657672704
pull-kubernetes-e2e-kind-ipv6 1437924293190094848 1436325086402449408 1436322856307789824
pull-kubernetes-integration 1437924292925853696 1436325075497259008 1436322855624118272
pull-kubernetes-node-e2e 1437924292812607488 1436325080526229504 1436322855527649280
pull-kubernetes-typecheck 1437924293060071424 1436325079691563008 1436322855687032832
pull-kubernetes-unit 1437924294502912000 1436325089753698304 1436322857985511424
pull-kubernetes-verify 1437924293110403072 1436325082203951104 1436322855716392960
pull-kubernetes-verify-govet-levee 1437924293139763200 1436325084724727808 1436322855745753088
pull-publishing-bot-validate 1436325091431419904 1436322858820177920