Merge branch 'gitaly-repo-info-attributes-opt-out' into 'master'

Move Repository#info_attributes to OptOut in gitaly

See merge request gitlab-org/gitlab-ce!19092

lib/gitlab/git/repository.rb

@@ -1048,7 +1048,7 @@ module Gitlab
         return @info_attributes if @info_attributes
 
         content =
-          gitaly_migrate(:get_info_attributes) do |is_enabled|
+          gitaly_migrate(:get_info_attributes, status: Gitlab::GitalyClient::MigrationStatus::OPT_OUT) do |is_enabled|
             if is_enabled
               gitaly_repository_client.info_attributes
             else