fix: Put KubeletExtraArgs in double quotes for Windows (#1082)

Author: yveslaroche

templates/userdata_windows.tpl

@@ -4,7 +4,7 @@ ${pre_userdata}
 [string]$EKSBinDir = "$env:ProgramFiles\Amazon\EKS"
 [string]$EKSBootstrapScriptName = 'Start-EKSBootstrap.ps1'
 [string]$EKSBootstrapScriptFile = "$EKSBinDir\$EKSBootstrapScriptName"
-& $EKSBootstrapScriptFile -EKSClusterName ${cluster_name} -KubeletExtraArgs '${kubelet_extra_args}' 3>&1 4>&1 5>&1 6>&1
+& $EKSBootstrapScriptFile -EKSClusterName ${cluster_name} -KubeletExtraArgs "${kubelet_extra_args}" 3>&1 4>&1 5>&1 6>&1
 $LastError = if ($?) { 0 } else { $Error[0].Exception.HResult }
 
 ${additional_userdata}