fix cpe importer worker using non existant import method. we need donwload_and_import method instead

app/workers/cpe_importer_worker.rb

@@ -7,6 +7,6 @@ class CpeImporterWorker
 
   def perform(*args)
     puts "Hello, I am #{jid} with args #{args}"
-    CpeImporter.new.import
+    CpeImporter.download_and_import
   end
 end