refactor: Do not fail on missing DTO properties

Previously, if Sonarr or Radarr added a new property to a DTO, Recyclarr
would fail when attempting to deserialize those responses. The purpose
of this was to catch compatibility issues early. However, this actually
prohibits a more useful case: Deserializing only data we care about and
having the freedom to ignore other, superfluous stuff.

src/Recyclarr/Command/ServiceCommand.cs

@@ -92,11 +92,6 @@ public abstract class ServiceCommand : BaseCommand, IServiceCommand
         {
             var jsonSettings = new JsonSerializerSettings
             {
-                // This is important. If any DTOs are missing members, say, if Radarr or Sonarr adds one in a future
-                // version, this needs to fail to indicate that a software change is required. Otherwise, we lose
-                // state between when we request settings, and re-apply them again with a few properties modified.
-                MissingMemberHandling = MissingMemberHandling.Error,
-
                 // This makes sure that null properties, such as maxSize and preferredSize in Radarr
                 // Quality Definitions, do not get written out to JSON request bodies.
                 NullValueHandling = NullValueHandling.Ignore