sonarr: Deploy Sonarr in a Podman container

The `sonarr.yml` playbook and corresponding role deploy Sonarr, the
indexer manager for the *arr suite, in a Podman container.

Note that we're relocating the log files from the Sonarr AppData
directory to `/var/log/sonarr` so they can be picked up by Fluent Bit.

roles/sonarr/defaults/main.yml

@@ -0,0 +1,4 @@
+sonarr_container_image: git.pyrocufflink.net/packages/sonarr
+sonarr_version: 4.0.16.2944
+
+sonarr_path_mounts: []