Upgrade to Pi-hole 2023.10.0

On all three nodes I upgraded Pi-hole successfully by means of fully automated Watchtower Docker container update.
On the CentOS 7 VM i had to recreate a sym-link to /etc/lighttpd/conf-enabled/99-unconfigured.conf within the container.
2023.10.0 (The "There's nothing to get excited about" edition)