Load recaptcha config

For the registration controller, we were not loading the recaptcha
config correctly before rendering the page. This could lead to
issues with the recaptcha gem, where it does not get the required
keys.

app/controllers/registrations_controller.rb

@@ -13,6 +13,7 @@ class RegistrationsController < Devise::RegistrationsController
   before_action :whitelist_query_limiting, only: [:destroy]
   before_action :ensure_terms_accepted,
     if: -> { action_name == 'create' && Gitlab::CurrentSettings.current_application_settings.enforce_terms? }
+  before_action :load_recaptcha, only: :new
 
   def new
     if experiment_enabled?(:signup_flow)
@@ -183,6 +184,10 @@ class RegistrationsController < Devise::RegistrationsController
     stored_location_for(user) || dashboard_projects_path
   end
 
+  def load_recaptcha
+    Gitlab::Recaptcha.load_configurations!
+  end
+
   # Part of an experiment to build a new sign up flow. Will be resolved
   # with https://gitlab.com/gitlab-org/growth/engineering/issues/64
   def choose_layout