ref(roles): All roles use desired package state

By setting the `desired_package_state` variable we can change if ansible
should only ensure that the packages exist on the system (`present`) or
that they are also updated to their latest version (`latest`).

roles/wayland/tasks/main.yaml

@@ -2,7 +2,7 @@
   community.general.xbps:
     name:
       - mesa-dri
-    state: present
+    state: "{{ desired_package_state | default('present') }}"
   tags:
     - intel
     - drivers
@@ -14,7 +14,7 @@
       - dbus
       - seatd
       - turnstile
-    state: present
+    state: "{{ desired_package_state | default('present') }}"
   tags:
     - packages
 
@@ -37,7 +37,7 @@
     name:
       - xdg-desktop-portal
       - xdg-desktop-portal-wlr
-    state: present
+    state: "{{ desired_package_state | default('present') }}"
   tags:
     - packages
     - desktop-portal
@@ -48,7 +48,7 @@
     name:
       - qt5-wayland
       - qt6-wayland
-    state: present
+    state: "{{ desired_package_state | default('present') }}"
   tags:
     - packages
     - qt