Disable yaml autoloader spec for zeitwerk as we can't test it this way

We can't modify the frozen autoload paths with zeitwerk.

For now, just disable this test with zeitwerk loader.

config/initializers/yaml_autoloader.rb

@@ -7,6 +7,9 @@
 #
 # Note, this is used to autoload constants serialized as yaml from one process and loaded in another such as through
 # args in the MiqQueue. An alternative would be to eager load all of our autoload_paths in all processes.
+#
+# This is still needed in some areas for zeitwerk, such as YAML files for tests in the manageiq-providers-vmware
+# that reference a constant: RbVmomi::VIM::TaskEvent
 Psych::Visitors::ToRuby.prepend Module.new {
   def resolve_class(klass_name)
     (class_loader.class != Psych::ClassLoader::Restricted && klass_name && klass_name.safe_constantize) || super

spec/initializers/yaml_autoloader_spec.rb

@@ -6,6 +6,7 @@
   let(:missing_model)   { model_directory.join("zzz_model.rb") }
 
   before do
+    skip "This is currently not testable with zeitwerk!" if Rails.application.config.autoloader == :zeitwerk
     File.write(missing_model, "class ZzzModel\nend\n")
     ActiveSupport::Dependencies.autoload_paths << model_directory
   end