Pi-hole 6 redirect

[hiyadragon]

With the release of pi-hole 6 the redirect to /admin is now handled by pi-hole itself. the redirect middlewares are not needed for version 6 but still needed for version 5. Also need to set your webserver.domain in the pihole .toml file or from the gui in the Webserver and API settings, since it's set to pi.hole as default.

Changes to the traefik config.yml commented out the prefix and redirect

pihole:
entryPoints:
- "https"
rule: "Host(pihole.local.example.com)"
middlewares:
# - redirectregex-pihole
- default-headers
# - addprefix-pihole
- https-redirectscheme
tls: {}
service: pihole