chore(setting): update settings

- run Dummy::Application instead of mere Rails
- sprockets is no longer required in Rails 7, so assets config is removed
- not raising transactional callbacks in current ActiveRecord version

Author: bivanalhar

spec/dummy/Rakefile

@@ -3,4 +3,4 @@
 
 require File.expand_path('../config/application', __FILE__)
 
-Rails.application.load_tasks
+Dummy::Application.load_tasks

spec/dummy/config.ru

@@ -1,4 +1,4 @@
 # This file is used by Rack-based servers to start the application.
 
 require ::File.expand_path('../config/environment', __FILE__)
-run Rails.application
+run Dummy::Application

spec/dummy/config/application.rb

@@ -19,12 +19,6 @@ class Application < Rails::Application
     # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
     # config.i18n.default_locale = :de
 
-    # Do not swallow errors in after_commit/after_rollback callbacks. This only applies to Rails 4.2
-    # and is deprecated in Rail 5.
-    if ActiveRecord.version == Gem::Version.new('4.2.x')
-      config.active_record.raise_in_transactional_callbacks = true
-    end
-
     config.after_initialize do
       require_relative '../db/schema'
     end

spec/dummy/config/environment.rb

@@ -2,4 +2,4 @@
 require File.expand_path('../application', __FILE__)
 
 # Initialize the Rails application.
-Rails.application.initialize!
+Dummy::Application.initialize!

spec/dummy/config/initializers/assets.rb

@@ -1,7 +1,7 @@
 # Be sure to restart your server when you modify this file.
 
 # Version of your assets, change this if you want to expire all your assets.
-Rails.application.config.assets.version = '1.0'
+# Rails.application.config.assets.version = '1.0'
 
 # Add additional assets to the asset load path
 # Rails.application.config.assets.paths << Emoji.images_path