Ignore statistics when performing on Geo secondary

Geo secondary cannot update statistics in the database, so ignore that
parameter.

ee/lib/ee/workers/project_cache_worker.rb

@@ -20,7 +20,7 @@ module EE
       # Geo should only update Redis based cache, as data store in the database
       # will be updated on primary and replicated to the secondaries.
       # rubocop: disable CodeReuse/ActiveRecord
-      def perform_geo_secondary(project_id, refresh = [])
+      def perform_geo_secondary(project_id, refresh = [], _statistics = [])
         project = ::Project.find_by(id: project_id)
 
         return unless project && project.repository.exists?