Damcava35/deb12 scripts 3 (#279)

* add "apt_remove" in lib/utils.sh

in order to manage DEBIAN_FRONTEND

* feat: add new scripts for debian 12

- tftp_is_disabled              ->      2.1.16
- network_services_listening    ->      2.1.22
- use_time_sync                 ->      2.3.1.1
Update the existing script to check there is only one installed

- chrony_is_enabled_and_running ->      2.3.3.3

---------

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

lib/utils.sh

@@ -584,6 +584,12 @@ apt_install() {
     FNRET=0
 }
 
+apt_remove() {
+    local PACKAGE=$1
+    DEBIAN_FRONTEND='noninteractive' apt-get remove -y "$PACKAGE"
+    FNRET=0
+}
+
 #
 #   Returns if a package is installed
 #