feat: add a destination variable for the log link

docs: argument specs for the keycloak_quarkus_log_target

docs: added parameter to the roles README

fix: role variable is keycloak_log_target and not keycloak_quarkus_log_target

roles/keycloak_quarkus/tasks/main.yml

@@ -67,6 +67,6 @@
   ansible.builtin.file:
     state: link
     src: "{{ keycloak.log.file | dirname }}"
-    dest: /var/log/keycloak
+    dest: "{{ keycloak_quarkus_log_target }}"
     force: yes
   become: yes