fix AR setup for Rails 7.2

Author: jrochkind

test/activerecord_provider/config/connection.rb

@@ -17,10 +17,14 @@
   ActiveRecord::MigrationContext.new(
     File.join(File.dirname(__FILE__), '..', 'database')
   ).migrate
-else
+elsif ActiveRecord.version < Gem::Version.new("7.2.0")
   ActiveRecord::MigrationContext.new(
     File.join(File.dirname(__FILE__), '..', 'database'),
     ActiveRecord::Base.connection.schema_migration
   ).migrate
+else
+  ActiveRecord::MigrationContext.new(
+    File.join(File.dirname(__FILE__), '..', 'database')
+  ).migrate
 end