Rename to field_name_table

ee/lib/gitlab/elastic/indexer.rb

@@ -107,7 +107,7 @@ module Gitlab
 
       def elasticsearch_config(target)
         config = Gitlab::CurrentSettings.elasticsearch_config.dup
-        config[:transform_tables] = target.real_class::GITALY_TRANSFORM_TABLES
+        config[:field_name_table] = target.real_class::GITALY_TRANSFORM_TABLES
         config[:index_name] = target.index_name
         config.to_json
       end

ee/spec/lib/gitlab/elastic/indexer_spec.rb

@@ -284,7 +284,7 @@ describe Gitlab::Elastic::Indexer do
   def elasticsearch_config
     config = Gitlab::CurrentSettings.elasticsearch_config.dup
     config.merge!(
-      transform_tables: Elastic::Latest::GitInstanceProxy::GITALY_TRANSFORM_TABLES,
+      field_name_table: Elastic::Latest::GitInstanceProxy::GITALY_TRANSFORM_TABLES,
       index_name: 'gitlab-test'
     )
   end