feat: add new checks for debian12

systemd_timesyncd_is_enabled_and_running.sh	-> 2.3.2.2
rpcbind_is_disabled.sh				-> 2.1.12
ftp_client_not_installed.sh			-> 2.2.6
chrony_with_chrony_user.sh			-> 2.3.3.2
ipv6_is_enabled.sh				-> 3.1.1

tests/hardening/chrony_is_enabled_and_running.sh

@@ -11,6 +11,7 @@ test_audit() {
     # not much to test here, we are running in a container, we wont check service state
     describe Checking blank host
     register_test retvalshouldbe 0
+    # shellcheck disable=2154
     run blank "${CIS_CHECKS_DIR}/${script}.sh" --audit-all
 
     apt remove -y chrony