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.

spec/models/post_mover_spec.rb

@@ -2225,6 +2225,7 @@ RSpec.describe PostMover do
 
         it "can add tags to new message when staff group is included in pm_tags_allowed_for_groups" do
           SiteSetting.pm_tags_allowed_for_groups = "1|2|3"
+          SiteSetting.tag_topic_allowed_groups = "1|2|3"
           personal_message.move_posts(
             admin,
             [p2.id, p5.id],

spec/models/reviewable_queued_post_spec.rb

@@ -239,7 +239,7 @@ RSpec.describe ReviewableQueuedPost, type: :model do
     before do
       SiteSetting.tagging_enabled = true
       SiteSetting.create_tag_allowed_groups = Group::AUTO_GROUPS[:trust_level_0]
-      SiteSetting.min_trust_level_to_tag_topics = 0
+      SiteSetting.tag_topic_allowed_groups = Group::AUTO_GROUPS[:trust_level_0]
     end
 
     context "when editing" do

spec/models/tag_spec.rb

@@ -17,7 +17,7 @@ RSpec.describe Tag do
 
   before do
     SiteSetting.tagging_enabled = true
-    SiteSetting.min_trust_level_to_tag_topics = 0
+    SiteSetting.tag_topic_allowed_groups = Group::AUTO_GROUPS[:trust_level_0]
   end
 
   describe "Associations" do

spec/models/tag_user_spec.rb

@@ -5,7 +5,7 @@ RSpec.describe TagUser do
   before do
     SiteSetting.tagging_enabled = true
     SiteSetting.create_tag_allowed_groups = Group::AUTO_GROUPS[:trust_level_0]
-    SiteSetting.min_trust_level_to_tag_topics = 0
+    SiteSetting.tag_topic_allowed_groups = Group::AUTO_GROUPS[:trust_level_0]
   end
 
   def regular

spec/models/topic_embed_spec.rb

@@ -8,7 +8,7 @@ RSpec.describe TopicEmbed do
   it { is_expected.to validate_presence_of :embed_url }
 
   describe ".import" do
-    fab!(:user)
+    fab!(:user) { Fabricate(:user, refresh_auto_groups: true) }
     let(:title) { "How to turn a fish from good to evil in 30 seconds" }
     let(:url) { "http://eviltrout.com/123" }
     let(:contents) do