Add cypress-on-rails support

[jrafanie]

Enables: ManageIQ/manageiq-ui-classic#9633 to use cypress on rails

We add this to core so the railtie in cypress-on-rails can hook into the rails
app startup as needed:
https://github.com/shakacode/cypress-playwright-on-rails/blob/d50de890b345879205124fa4de52bf899d9df2d0/lib/cypress_on_rails/railtie.rb#L6

Note, this could be pushed down to UI Classic, see below, but this has a few
problems:

1. Core already has bundler groups for development and test that these nicely
   fit into. This allows us to easily exclude them from different installation
   scenarios such as smaller deployments with just the required runtime
   dependencies.

2. UI-Classic is a gem engine that gets pulled in, so only the runtime
   dependencies are resolved and available. Therefore, we would need to add these
   test gems as runtime dependencies which sends the wrong message and makes it
   difficult to exclude.

Alternative setup (not suggested):

a) Remove it from core:

index https://github.com/jrafanie/manageiq/commit/cd4501593716391e5412903b8f0bdbf6f3b87d7c..https://github.com/jrafanie/manageiq/commit/b62ae61bb07e6cb4f0f74f57b0032b5f45ef6256 100644
--- a/Gemfile
+++ b/Gemfile
@@ -326,7 +326,4 @@ group :development, :test do
   gem "parallel_tests",                 "~>4.4", :require => false
   gem "routes_lazy_routes"
   gem "rspec-rails",                    "~>7.0"
-  gem "cypress-on-rails",               "~>1.17.0" # Need railtie to be loaded with rails app
-  gem "factory_bot_rails"
-  gem "database_cleaner",               "~>2.1"
 end

b) Require it in UI-Classic's Engine and add the gems to the gemspec:

index dc72a001ec..cf420620c1 100644
--- a/lib/manageiq/ui/classic/engine.rb
+++ b/lib/manageiq/ui/classic/engine.rb
@@ -36,6 +36,8 @@ module ManageIQ
           config.assets.js_compressor = :manageiq_ui_classic_js_compressor
         end
Enables: https://github.com/ManageIQ/manageiq-ui-classic/pull/9633


+        require 'cypress-on-rails' if ENV['CYPRESS'].present?
+
         def self.vmdb_plugin?
           true
         end
diff --git a/manageiq-ui-classic.gemspec b/manageiq-ui-classic.gemspec
index cef587a45a..3ed378abed 100644
--- a/manageiq-ui-classic.gemspec
+++ b/manageiq-ui-classic.gemspec
@@ -31,7 +31,10 @@ Gem::Specification.new do |s|
   s.add_dependency "uglifier", "~>4.2.0"
   s.add_dependency "webpacker", "~>2.0.0"

-  s.add_development_dependency "cypress-on-rails", "~> 1.0"
+  s.add_dependency "cypress-on-rails", "~>1.17.0"
+  s.add_dependency "factory_bot_rails"
+  s.add_dependency "database_cleaner", "~>2.1"
+

[jrafanie]

@miq-bot cross_repo_test including ManageIQ/manageiq-ui-classic#9633

[jrafanie]

@Fryguy This one is ready to go. I'd like to kick ManageIQ/manageiq-ui-classic#9633 so the cypress tests can run on CI there with this merged. I ran them locally but want to make sure I'm not breaking anything.