fix typo - `url` -> `@url`

app/services/fetch_link_card_service.rb

@@ -22,7 +22,7 @@ class FetchLinkCardService < BaseService
 
     @url = sanitize_query_string(@url.to_s)
     return if @url.nil?
-    return if autoreject?(url)
+    return if autoreject?(@url)
 
     RedisLock.acquire(lock_options) do |lock|
       if lock.acquired?

app/services/fetch_oembed_service.rb

@@ -9,7 +9,7 @@ class FetchOEmbedService
     @url     = url
     @options = options
 
-    return if autoreject?(url)
+    return if autoreject?(@url)
     discover_endpoint!
     fetch!
   end