Adds script to update LXC services from the host, allowing to automatically increase resources if needed to build the service

misc/build.func

@@ -1096,6 +1096,10 @@ start() {
   source <(curl -fsSL https://git.community-scripts.org/community-scripts/ProxmoxVED/raw/branch/main/misc/tools.func)
   if command -v pveversion >/dev/null 2>&1; then
     install_script
+  elif [ ! -z ${PHS_SILENT+x} ] && [[ "${PHS_SILENT}" == "1" ]]; then
+    VERBOSE="no"
+    set_std_mode
+    update_script
   else
     CHOICE=$(whiptail --backtitle "[dev] Proxmox VE Helper Scripts" --title "${APP} LXC Update/Setting" --menu \
       "Support/Update functions for ${APP} LXC. Choose an option:" \