Ensure containerd service unmasking (#8726)

* Force containerd service unmasking

Force systemd to unmask and start service when adding containerd service

* Eliminate restart and move unmasking step

Switch to start instead of restart
Move unmasking to restart handler

* Add unmasking to similar container runtimes

* Add missing service names

roles/container-engine/docker/handlers/main.yml

@@ -9,7 +9,9 @@
 
 - name: Docker | reload systemd
   systemd:
+    name: docker
     daemon_reload: true
+    masked: no
 
 - name: Docker | reload docker.socket
   service: