fixes #37524 - feat: enable ansible variable events

Signed-off-by: gardar <[email protected]>

app/models/ansible_variable.rb

@@ -2,6 +2,8 @@
 
 # Represents the variables used in Ansible to parameterize playbooks
 class AnsibleVariable < LookupKey
+  include Foreman::ObservableModel
+
   belongs_to :ansible_role, :inverse_of => :ansible_variables
   validates :ansible_role_id, :presence => true
   before_validation :cast_default_value, :if => :override?
@@ -11,6 +13,8 @@ class AnsibleVariable < LookupKey
   scoped_search :relation => :ansible_role, :on => :name,
                 :complete_value => true, :rename => :ansible_role
 
+  set_crud_hooks :ansible_variable
+
   def ansible?
     true
   end