chore: update existing_resource_group_name variable format and catalog entries#723

ocofaigh merged 2 commits intomainterraform-ibm-modules/terraform-ibm-icd-postgresql:mainfrom

update_existing_rg_name_varterraform-ibm-modules/terraform-ibm-icd-postgresql:update_existing_rg_name_varCopy head branch name to clipboard