fix: Marked the Season.statistics field as Option so that a panic does not happen for outdated Sonarr data. This resolves #35

src/network/sonarr_network_tests.rs

@@ -5700,7 +5700,7 @@ mod test {
       title: None,
       season_number: 1,
       monitored: true,
-      statistics: season_statistics(),
+      statistics: Some(season_statistics()),
     }
   }