Add a keycloak module to query keys metadata (#8605)
* feat(keycloak): module to query keys metadata
* chore: add thomasbach-dev as maintainer in team_keycloak
* test: adding a unit test for keycloak_real_keys_metadata_info module
* fixup! feat(keycloak): module to query keys metadata
(cherry picked from commit 229ed6dad9)
Co-authored-by: Thomas Bach <63091663+thomasbach-dev@users.noreply.github.com>