Damcava35/update lib (#277)

* update lib/utils.sh

- add 'is_pkg_a_dependency', to ensure a package is not needed by some others before removing it
-> will be used in debian 12 CIS by at least the 2.1.5 recommendation

- update 'is_service_enabled' to use 'systemd' instead of 'rc.d', as we are now only supporting debian LTS using systemd
- add 'is_using_sbin_init' to ensure we can use systemctl, in case of running on non detected container
- add 'manage_service' to enable / disable service using systemctl

* chore: update script related to systemctl / service

- configure_systemd-timesync.sh:        use "is_service_enabled" instead of calling systemctl
- disable_automounting.sh:              use "manage_service" instead of "update-rc.d"
- enable_auditd.sh:                     use "manage_service" instead of "update-rc.d"
- enable_cron.sh:                       use "manage_service" instead of "update-rc.d"
- enable_syslog-ng.sh:                  use "manage_service" instead of "update-rc.d"

---------

Co-authored-by: Damien Cavagnini <damien.cavagnini@corp.ovh.com>

tests/hardening/enable_auditd.sh

@@ -1,9 +1,11 @@
 # shellcheck shell=bash
 # run-shellcheck
 test_audit() {
+    describe Prepare failing test
+    apt remove -y auditd
+
     describe Running on blank host
-    register_test retvalshouldbe 0
-    dismiss_count_for_test
+    register_test retvalshouldbe 1
     # shellcheck disable=2154
     run blank "${CIS_CHECKS_DIR}/${script}.sh" --audit-all
 
@@ -12,7 +14,8 @@ test_audit() {
     "${CIS_CHECKS_DIR}/${script}.sh" || true
 
     describe Checking resolved state
-    register_test retvalshouldbe 0
-    register_test contain "[ OK ] auditd is enabled"
+    # service still wont be enabled due to tests running inside a docker container
+    register_test retvalshouldbe 1
+    register_test contain "[ OK ] auditd is installed"
     run resolved "${CIS_CHECKS_DIR}/${script}.sh" --audit-all
 }