Add specified es_tokenizer and test unit

[github-actions[bot]]

☂️ Python Coverage

current status: ✅

Overall Coverage

Lines	Covered	Coverage	Threshold	Status
3418	2052	60%	50%	🟢

New Files

File	Coverage	Status
src/pai_rag/modules/retriever/my_async_vector_store.py	14%	🟢
TOTAL	14%	🟢

Modified Files

File	Coverage	Status
src/pai_rag/modules/retriever/my_elasticsearch_store.py	33%	🟢
TOTAL	33%	🟢

updated for commit: ba83877 by action🐍