keycloak_group: fix subgroup creation in Keycloak ≥23 (#8979)
* keycloak_group: fix subgroup creation in Keycloak ≥23
* Add changelog fragment
* Include issue and pull request in changelog fragment
Co-authored-by: Felix Fontein <felix@fontein.de>
* Use new way to get subgroups when getting a subgroup chain
* Fix indent
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Co-authored-by: Felix Fontein <felix@fontein.de>
(cherry picked from commit 658637dc70)
Co-authored-by: Victor Gaudard <victor.gaudard@gmail.com>