Update helm version to 3.11.3

Change-Id: Ic95f32cd1fc311bf93a817da90f48a17d7c2bd13
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/installers/install_kubeadm_cluster.sh b/installers/install_kubeadm_cluster.sh
index 648a1be..03b7d79 100755
--- a/installers/install_kubeadm_cluster.sh
+++ b/installers/install_kubeadm_cluster.sh
@@ -114,7 +114,7 @@
 #Helm releases can be found here: https://github.com/helm/helm/releases
 function install_helm() {
     [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of function
-    HELM_VERSION="v3.7.2"
+    HELM_VERSION="v3.11.3"
     if ! [[ "$(helm version --short 2>/dev/null)" =~ ^v3.* ]]; then
         # Helm is not installed. Install helm
         echo "Helm3 is not installed, installing ..."