changed: implement CTS change for Indexing test
changed: implement CTS change for Indexing test

See https://github.com/algolia/algoliasearch-client-specs/commit/c0b4e251b03312e8614946370b33be66840beb9f

algolia/algoliasearch-client-go,l4u/algoliasearch-client-go,algolia/algoliasearch-client-go,l4u/algoliasearch-client-go