feat: add support for Kubernetes v1.21.11 (#4859)

See https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.21.md#changelog-since-v12110

pkg/api/common/versions.go

@@ -289,7 +289,8 @@ var AllKubernetesSupportedVersions = map[string]bool{
 	"1.21.7":         false,
 	"1.21.8":         false,
 	"1.21.9":         false,
-	"1.21.10":        true,
+	"1.21.10":        false,
+	"1.21.11":        true,
 	"1.22.0-alpha.1": false,
 	"1.22.0-alpha.2": false,
 	"1.22.0-alpha.3": false,

vhd/packer/configure-windows-vhd.ps1

@@ -123,7 +123,7 @@ function Get-FilesToCacheOnVHD {
         "c:\akse-cache\win-k8s\"      = @(
             "https://kubernetesartifacts.azureedge.net/kubernetes/v1.19.16/windowszip/v1.19.16-1int.zip",
             "https://kubernetesartifacts.azureedge.net/kubernetes/v1.20.15/windowszip/v1.20.15-1int.zip",
-            "https://kubernetesartifacts.azureedge.net/kubernetes/v1.21.10/windowszip/v1.21.10-1int.zip",
+            "https://kubernetesartifacts.azureedge.net/kubernetes/v1.21.11/windowszip/v1.21.11-1int.zip",
             "https://kubernetesartifacts.azureedge.net/kubernetes/v1.22.7/windowszip/v1.22.7-1int.zip",
             "https://kubernetesartifacts.azureedge.net/kubernetes/v1.23.4/windowszip/v1.23.4-1int.zip",
             "https://kubernetesartifacts.azureedge.net/kubernetes/v1.24.0-alpha.3/windowszip/v1.24.0-alpha.3-1int.zip"

vhd/packer/install-dependencies.sh

@@ -222,7 +222,7 @@ K8S_VERSIONS="
 1.24.0-alpha.3
 1.23.4
 1.22.7
-1.21.10
+1.21.11
 1.20.15
 1.19.16
 "