Fix warning issued by AS log subscriber 7.1 and make bold again

Author: Hampei

lib/rom/sql/extensions/rails_log_subscriber.rb

@@ -14,8 +14,8 @@ class RailsLogSubscriber < ActiveSupport::LogSubscriber
         end
 
       COLOR_OPTION =
-        if as_version && as_version >= ::Gem::Version.new('7.2')
-          { color: true }
+        if as_version && as_version >= ::Gem::Version.new('7.1.2')
+          { bold: true }
         else
           true
         end