Adds auto-update to containers, enables auto-update for root, sync only at 8 and 20, excludes some files from sync

quadlets/pihole/unbound-redis-socket.container

@@ -7,6 +7,7 @@ Command=CMD chown -R 999:1001 /usr/local/unbound/cachedb.d/ && /bin/sh
 ContainerName=unbound-redis-socket
 Environment=TZ=Europe/Zurich
 Image=docker.io/busybox
+Label=io.containers.autoupdate=registry
 Pod=pihole.pod
 StartWithPod=true
 Timezone=Europe/Zurich