Load milvus collection by default

[github-actions[bot]]

☂️ Python Coverage

current status: ✅

Overall Coverage

Lines	Covered	Coverage	Threshold	Status
4060	2258	56%	50%	🟢

New Files

No new covered files...

Modified Files

File	Coverage	Status
src/pai_rag/modules/index/my_milvus_vector_store.py	21%	🟢
TOTAL	21%	🟢

updated for commit: 642464f by action🐍