thejoycekung: [1.20][go1.15] Update to go1.15.13

JobBuild
102786
06-10 18:30
9bcd24dc
06-10 18:28
pull-kubernetes-bazel-build 1404795329768853504 1403056575530143744
pull-kubernetes-bazel-test 1404804187593641984 1404795329789825025 1403073262438584320 1403056575563698176
pull-kubernetes-dependencies 1404795330536411136 1403056575584669696
pull-kubernetes-e2e-gce-100-performance 1404795329752076288 1403056575496589312
pull-kubernetes-e2e-gce-ubuntu-containerd 1404795329701744640 1403056575442063360
pull-kubernetes-e2e-kind 1404795333896048640 1403056575626612736
pull-kubernetes-integration 1404795332214132736 1403056575605641216
pull-kubernetes-node-e2e 1404795329722716160 1403056575467229184
pull-kubernetes-typecheck 1404795335565381632 1403056575651778560
pull-kubernetes-verify 1404795337251491840 1403056575723081728
pull-publishing-bot-validate 1403056576264146944