Found missing properties in api response for DiscordGuild

[sentry]

Sentry Issue: DISCATSHARP-2GW

Found missing properties in api response for DiscordGuild

New fields: {
  "premium_progress_bar_enabled_user_updated_at": "null",
  "owner_configured_content_level": "int64",
  "official_message_color": "null"
}