Automatic merge from submit-queue.
Automated cherry pick of #62505: update godeps to use latest pflag
Cherry pick of #62505 on release-1.10.
#62505: update godeps to use latest pflag
```release-note
Show help for deprecated Kubelet flags
```
Kubernetes-commit: 8959a0aa87adf07c4ff821bf6d79714b3d615e8a