arr: Use gluetun port forward feature

Explanation here:
https://github.com/qdm12/gluetun-wiki/blob/main/setup/advanced/vpn-port-forwarding.md

Whenever we receive a new forwarded port (around once a month?) we pass
it to qbit through its API. May require the setting no auth for local
connections in qbit.

Allows to remove the complete port-manager docker container which did
not work very well.

roles/arr/templates/docker-compose.yaml.j2

@@ -160,6 +160,7 @@ services:
       - PORT_FORWARD_ONLY=true
       - VPN_PORT_FORWARDING=on
       - VPN_PORT_FORWARDING_PROVIDER={{ arrstack_vpn_provider }}
+      - VPN_PORT_FORWARDING_UP_COMMAND=/bin/sh -c 'wget -O- --retry-connrefused --post-data "json={\"listen_port\":{{ '{{' }}PORTS{{ '}}' }} }" http://127.0.0.1:8888/api/v2/app/setPreferences 2>&1'
       - QBITTORRENT_USER={{ arrstack_qbit_user }}
       - QBITTORRENT_PASS={{ arrstack_qbit_pass }}
     cap_add:
@@ -168,8 +169,6 @@ services:
       - /dev/net/tun:/dev/net/tun
     volumes:
       - "{{ arrstack_env_dir }}/config/gluetun:/gluetun"
-    #ports: # TODO: should this be exposed?
-    #  - 8000:8000  # gluetun http control
     restart: unless-stopped
     labels:
       caddy: "{{ arrstack_qbit_subdomain }}"
@@ -191,43 +190,6 @@ services:
       - vpn
     network_mode: "service:vpn"
     restart: unless-stopped
-  gluetun-qbittorrent-port-manager:
-    image: patrickaclark/gluetun-qbittorrent-port-manager:latest
-    container_name: qbit-port-manager
-    environment:
-      - PUID={{ arrstack_puid }}
-      - PGID={{ arrstack_pgid }}
-      - TZ={{ arrstack_tz }}
-      - UMASK_SET={{ arrstack_umask_set }}
-      - WEBUI_PORT=8888
-      - QBITTORRENT_SERVER=qbittorrent  # IP Address of qbittorrent
-      - QBITTORRENT_PORT=8888
-      - PORT_FORWARDED=/gluetun/forwarded_port
-      - HTTP_S=http  # Select 'http' or 'https' depending on if you use certificates.
-      - GLUETUN_HOST=vpn  # IP or FQDN of gluetun control server
-      - GLUETUN_PORT=8000  # port of gluetun control server
-      - RECHECK_TIME=60  # number of seconds between checks to gluetun server for port
-      - VPN_SERVICE_PROVIDER={{ arrstack_vpn_provider }}
-      - OPENVPN_USER={{ arrstack_vpn_user }}
-      - OPENVPN_PASSWORD={{ arrstack_vpn_pass }}
-      - SERVER_REGIONS={{ arrstack_vpn_regions }}
-      - PORT_FORWARD_ONLY=true
-      - VPN_PORT_FORWARDING=on
-      - VPN_PORT_FORWARDING_PROVIDER={{ arrstack_vpn_provider }}
-      - QBITTORRENT_USER={{ arrstack_qbit_user }}
-      - QBITTORRENT_PASS={{ arrstack_qbit_pass }}
-    volumes:
-      - "{{ arrstack_env_dir }}/config/gluetun:/gluetun"
-    depends_on:
-      - vpn
-    network_mode: "service:vpn"
-    restart: unless-stopped
-    healthcheck:
-      test: ["CMD", "curl", "-H", "Authorization: $controlServerAuthKey", "-s", "http://localhost:8000/v1/openvpn/status", "|", "grep", "-q", '{"status":"running"}']
-      interval: 30s
-      timeout: 10s
-      start_period: 60s
-      retries: 3
 
   homarr:
     image: ghcr.io/ajnart/homarr:latest