Vendor middleware_automation.keycloak collection

Needed for keycloak_authentication_v2, to manage Keycloak
authentication flows (e.g. the CCCHH browser flow) as YAML.
Chosen over community.general's own copy of the module (deprecated in
favor of this collection, and limited to 4 sub-flow levels there vs.
10 here).

ansible_collections/middleware_automation/keycloak/playbooks/rhsso.yml

@@ -0,0 +1,8 @@
+---
+- name: Playbook for Red Hat SSO Hosts
+  hosts: sso
+  vars:
+    keycloak_admin_password: "remembertochangeme"
+    sso_enable: true
+  roles:
+    - middleware_automation.keycloak.keycloak