tests(packer): add lxqt test image, update xfce.

tests/cloud-init/archlinux.yml

@@ -88,6 +88,73 @@ kde-packages: &kde-packages
   - konsole
   - okular
 
+lxqt-packages: &lxqt-packages
+  # Core packages for Archlinux
+  - apparmor
+  - base-devel
+  - bash-completion
+  - docker
+  - git
+  - htop
+  - just
+  - man
+  - pass
+  - python-notify2
+  - qemu-guest-agent
+  - rng-tools
+  - spice-vdagent
+  - vim
+  - wget
+
+  # Desktop packages for Archlinux
+  - networkmanager
+  - cups
+  - cups-pdf
+  - system-config-printer
+  - chromium
+  - firefox
+  - spice-vdagent
+  - terminator
+
+  # Install Graphical Interface
+  - lxqt
+  - breeze-icons
+  - sddm
+
+xfce-packages: &xfce-packages
+  # Core packages for Archlinux
+  - apparmor
+  - base-devel
+  - bash-completion
+  - docker
+  - git
+  - htop
+  - just
+  - man
+  - pass
+  - python-notify2
+  - qemu-guest-agent
+  - rng-tools
+  - spice-vdagent
+  - vim
+  - wget
+
+  # Desktop packages for Archlinux
+  - networkmanager
+  - cups
+  - cups-pdf
+  - system-config-printer
+  - chromium
+  - firefox
+  - spice-vdagent
+  - terminator
+
+  # Install Graphical Interface
+  - xfce4
+  - xfce4-goodies
+  - lightdm
+  - lightdm-gtk-greeter
+
 # Enable AppArmor in kernel parameters
 grub-enable-apparmor: &grub-enable-apparmor
   path: /etc/default/grub