Fix deprecation issue with deprecation proxy needing a deprecator obj…

…ect passed in.

lib/trln_argon/controller_override/solr_caching.rb

@@ -21,7 +21,7 @@ def cached_catalog_index
     @document_list = ActiveSupport::Deprecation::DeprecatedObjectProxy.new(
       deprecated_document_list,
       'The @document_list instance variable is deprecated; '\
-      ' use @response.documents instead.')
+      ' use @response.documents instead.', ActiveSupport::Deprecation.new)
 
     respond_to do |format|
       format.html { store_preferred_view }