Fix rakefile

Author: tillsc

integration/rails7_test/src/main/ruby/Rakefile

@@ -1,6 +1,6 @@
 # Add your own tasks in files placed in lib/tasks ending in .rake,
 # for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.
 
-require File.expand_path('../config/application', __FILE__)
+require_relative "config/application"
 
-Rails::Application.load_tasks
+Rails.application.load_tasks