DEV: Convert min_trust_level_to_tag_topics to groups (#25258)

We're changing the implementation of trust levels to use groups. Part of this is to have site settings that reference trust levels use groups instead. It converts the min_trust_level_to_tag_topics site setting to tag_topic_allowed_groups.

plugins/chat/spec/lib/chat/channel_archive_service_spec.rb

@@ -7,7 +7,7 @@ describe Chat::ChannelArchiveService do
   end
 
   fab!(:channel) { Fabricate(:category_channel) }
-  fab!(:user) { Fabricate(:user, admin: true) }
+  fab!(:user) { Fabricate(:user, admin: true, refresh_auto_groups: true) }
   fab!(:category)
 
   let(:topic_params) { { topic_title: "This will be a new topic", category_id: category.id } }