chore: update existing_resource_group_name variable format and catalog entries#244

piyush117 wants to merge 2 commits intomainterraform-ibm-modules/stack-ibm-core-security-services:mainfrom

update_existing_rg_name_varterraform-ibm-modules/stack-ibm-core-security-services:update_existing_rg_name_varCopy head branch name to clipboard