Do not attempt to create special "host" network

Certain setups may wish to use `--network=host`.

The role attempting to create the special `host` network leads to an
error. We can just assume that it's there without having to create it.

tasks/install.yml

@@ -118,12 +118,12 @@
   until: result is not failed
 
 - name: Ensure Traefik container network exists via community.docker.docker_network
-  when: devture_systemd_docker_base_container_network_creation_method == 'ansible-module'
+  when: devture_systemd_docker_base_container_network_creation_method == 'ansible-module' and devture_traefik_container_network != 'host'
   community.docker.docker_network:
     name: "{{ devture_traefik_container_network }}"
 
 - name: Ensure Traefik container network exists via command
-  when: devture_systemd_docker_base_container_network_creation_method == 'command'
+  when: devture_systemd_docker_base_container_network_creation_method == 'command' and devture_traefik_container_network != 'host'
   ansible.builtin.command:
     cmd: "{{ devture_systemd_docker_base_host_command_docker }} network create {{ devture_traefik_container_network }}"
   register: network_creation_result