Add keycloak plugin 1.4#787

themr0c merged 2 commits intoredhat-developer:mainredhat-developer/red-hat-developers-documentation-rhdh:mainfrom

jmagak:RHIDP-3060-Add-the-supported-Keycloak-version-as-a-prerequisite-in-the-1.4-docjmagak/red-hat-developers-documentation-rhdh:RHIDP-3060-Add-the-supported-Keycloak-version-as-a-prerequisite-in-the-1.4-docCopy head branch name to clipboard