Fixes Rubocop SecurityOpen offense

.rubocop_todo.yml

@@ -238,11 +238,6 @@ Rails/UniqueValidationWithoutIndex:
     - 'app/models/spree/tax_category.rb'
     - 'app/models/spree/zone.rb'
 
-# Offense count: 1
-Security/Open:
-  Exclude:
-    - 'app/services/image_importer.rb'
-
 # Offense count: 23
 # This cop supports unsafe autocorrection (--autocorrect-all).
 # Configuration parameters: EnforcedStyle.

app/services/image_importer.rb

@@ -3,7 +3,7 @@
 class ImageImporter
   def import(url, product)
     valid_url = URI.parse(url)
-    file = open(valid_url.to_s)
+    file = File.open(valid_url.to_s)
     filename = File.basename(valid_url.path)
 
     Spree::Image.create(