Add temp kubelet fix

The K8s master jobs with containerd fail due to some kubelet flags
being completely removed.

This was fixed in the image-builder via:
kubernetes-sigs/image-builder#783

This temporary fix will be removed once new images are released
with the image-builder fix included.

e2e-runner/e2e_runner/scripts/kubeadm-bootstrap.ps1

@@ -149,6 +149,7 @@ function Update-Kubernetes {
     foreach($bin in $binaries) {
         Start-FileDownload "$CIPackagesBaseURL/$CIVersion/bin/windows/amd64/$bin" "$KUBERNETES_DIR\$bin"
     }
+    Start-FileDownload "$CIPackagesBaseURL/scripts/kubelet-start.ps1" "$KUBERNETES_DIR\StartKubelet.ps1"
 }
 
 function Update-SDNCNI {

e2e-runner/e2e_runner/scripts/kubelet-start.ps1

@@ -0,0 +1,16 @@
+$FileContent = Get-Content -Path "/var/lib/kubelet/kubeadm-flags.env"
+$kubeAdmArgs = $FileContent.TrimStart('KUBELET_KUBEADM_ARGS=').Trim('"')
+
+$args = "--cert-dir=$env:SYSTEMDRIVE/var/lib/kubelet/pki",
+        "--config=$env:SYSTEMDRIVE/var/lib/kubelet/config.yaml",
+        "--bootstrap-kubeconfig=$env:SYSTEMDRIVE/etc/kubernetes/bootstrap-kubelet.conf",
+        "--kubeconfig=$env:SYSTEMDRIVE/etc/kubernetes/kubelet.conf",
+        "--hostname-override=$(hostname)",
+        "--pod-infra-container-image=`"k8s.gcr.io/pause:3.6`"",
+        "--enable-debugging-handlers",
+        "--cgroups-per-qos=false",
+        "--enforce-node-allocatable=`"`"",
+        "--resolv-conf=`"`""
+
+$kubeletCommandLine = "$env:SYSTEMDRIVE\k\kubelet.exe " + ($args -join " ") + " $kubeAdmArgs"
+Invoke-Expression $kubeletCommandLine