[Ubuntu] Disable motd updates metadata (#4873)

* Disable motd updates metadata

* check daemon.conf config exists

* mask fwupd-refresh.timer service

images/linux/scripts/installers/configure-environment.sh

@@ -31,4 +31,12 @@ echo 'vm.max_map_count=262144' | tee -a /etc/sysctl.conf
 
 # Create symlink for tests running
 chmod +x $HELPER_SCRIPTS/invoke-tests.sh
-ln -s $HELPER_SCRIPTS/invoke-tests.sh /usr/local/bin/invoke_tests
+ln -s $HELPER_SCRIPTS/invoke-tests.sh /usr/local/bin/invoke_tests
+
+# Disable motd updates metadata
+sed -i 's/ENABLED=1/ENABLED=0/g' /etc/default/motd-news
+
+if [[ -f "/etc/fwupd/daemon.conf" ]]; then
+    sed -i 's/UpdateMotd=true/UpdateMotd=false/g' /etc/fwupd/daemon.conf
+    systemctl mask fwupd-refresh.timer
+fi