Kartik494: Upgrade Go version to 1.16

JobBuild
254
07-26 07:27
pull-sig-storage-local-static-provisioner 1419568083676172288 1419560026946670592
pull-sig-storage-local-static-provisioner-e2e 1419568083793612800 1419560027038945280
pull-sig-storage-local-static-provisioner-e2e-gke 1419568083831361536 1419560027072499712
pull-sig-storage-local-static-provisioner-test 1419568083755864064 1419560026997002240
pull-sig-storage-local-static-provisioner-verify 1419568083709726720 1419560026971836416