Upgrade default cert-manager version to 1.12.16 (#581)

Author: lhotari

scripts/cert-manager/install-cert-manager.sh

@@ -25,7 +25,7 @@ set -e
 NAMESPACE=cert-manager
 NAME=cert-manager
 # check compatibility with k8s versions from https://cert-manager.io/docs/installation/supported-releases/
-VERSION=v1.12.13
+VERSION=v1.12.16
 
 # Install cert-manager CustomResourceDefinition resources
 echo "Installing cert-manager CRD resources ..."