Merge pull request #53553 from bsteciuk/kubeadm-windows

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Kubeadm - Added initial support for Windows worker nodes to join cluster using kubeadm

**What this PR does / why we need it**:
This PR adds initial support for adding a Windows worker node to a Kubernetes cluster with kubeadm.  Also adds Windows build of kubeadm to node build targets. 

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes https://github.com/kubernetes/kubeadm/issues/364 

**Special notes for your reviewer**:

Depends on #53730 

**Release note**:

```release-note
kubeadm: Add support for adding a Windows node
```

hack/lib/golang.sh

@@ -44,6 +44,7 @@ readonly KUBE_SERVER_BINARIES=("${KUBE_SERVER_TARGETS[@]##*/}")
 kube::golang::node_targets() {
   local targets=(
     cmd/kube-proxy
+    cmd/kubeadm
     cmd/kubelet
   )
   echo "${targets[@]}"