Merge branch 'ignore-aws-provider-user-id' into 'master'

Ignore unused user ID on AWS cluster provider

See merge request gitlab-org/gitlab!38879

app/models/clusters/providers/aws.rb

@@ -5,6 +5,9 @@ module Clusters
     class Aws < ApplicationRecord
       include Gitlab::Utils::StrongMemoize
       include Clusters::Concerns::ProviderStatus
+      include IgnorableColumns
+
+      ignore_column :created_by_user_id, remove_with: '13.4', remove_after: '2020-08-22'
 
       self.table_name = 'cluster_providers_aws'