* Create group for keycloak
This will allows keycloak authentication details to be set as a module_defaults rather than repeated on each task
* add documentation to keycloak modules to note creation of action_group
* add changelog for keycloak action_group creation
* exclude keycloak_realm_info from action group, as it does not share same set of base parameters
* fix formatting on changelog entry for adding Keycloak action group
Co-authored-by: Felix Fontein <felix@fontein.de>
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Co-authored-by: Felix Fontein <felix@fontein.de>
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