Fix PostgreSQL connection leak by using test adapter

Co-authored-by: Knerio <96529060+Knerio@users.noreply.github.com>

Author: Copilot

config/environments/test.rb

@@ -46,6 +46,9 @@
   # ActionMailer::Base.deliveries array.
   config.action_mailer.delivery_method = :test
 
+  # Use test adapter for ActiveJob to avoid connection leaks from GoodJob
+  config.active_job.queue_adapter = :test
+
   # Print deprecation notices to the stderr.
   config.active_support.deprecation = :stderr