fix(authelia): prometheus metrics config was wrongly scoped to toplevel telemetry key

roles/authelia/vars/main.yml

@@ -74,6 +74,7 @@ authelia_config_log: >-2
       if authelia_config_log_file_path | default(false, true) else {})
   }}
 authelia_config_telemetry:
+  metrics:
     enabled: "{{ authelia_config_telemetry_metrics_enabled }}"
     address: "{{ authelia_config_telemetry_metrics_address }}"
 authelia_config_totp: