Update to latest NordVPN client and switch to latest Ubuntu Jammy (#17)

* Add quotes to avoid string errors

* Ubuntu Jammy and NordVPN 3.17.4 update

Author: MattsBos

Dockerfile

@@ -1,8 +1,8 @@
-FROM ghcr.io/linuxserver/baseimage-ubuntu:focal
+FROM ghcr.io/linuxserver/baseimage-ubuntu:jammy
 LABEL maintainer="Matts Bos - MattsTechInfo"
 
 # Configure the NordVPN client version to install at build
-ARG NORDVPN_CLIENT_VERSION=3.17.0
+ARG NORDVPN_CLIENT_VERSION=3.17.4
 
 # Avoid interactions during build process
 ARG DEBIAN_FRONTEND=noninteractive