Reverts terraform cli version to 0.12.20

Author: Sean Sundberg

Dockerfile

@@ -1,6 +1,6 @@
 FROM registry.access.redhat.com/ubi8/ubi:8.1-397
 
-ENV TERRAFORM_VERSION 0.12.23
+ENV TERRAFORM_VERSION 0.12.20
 ENV TERRAFORM_IBMCLOUD_VERSION 1.2.3
 ENV TERRAFORM_KUBERNETES_VERSION 1.10.0
 ENV TERRAFORM_HELM_VERSION 1.0.0

README.md

@@ -3,7 +3,7 @@
 This repository builds a Docker image whose container is a client for using IBM Cloud.
 
 The container includes the following tools - (tool@version):
-- terraform cli@0.12.23
+- terraform cli@0.12.20
 - terraform plugins:
   - terraform-provider-helm@1.0.0
   - terraform-provider-kube@1.10.0