Ignore RecordNotUnique errors in LinkCrawlWorker (#28748)

app/workers/link_crawl_worker.rb

@@ -7,7 +7,7 @@ class LinkCrawlWorker
 
   def perform(status_id)
     FetchLinkCardService.new.call(Status.find(status_id))
-  rescue ActiveRecord::RecordNotFound
+  rescue ActiveRecord::RecordNotFound, ActiveRecord::RecordNotUnique
     true
   end
 end