What's Changed
* Fix lint error by yhmo in https://github.com/milvus-io/pymilvus/pull/1668
* while parse uri, overwrite the db_name with default by PowderLi in https://github.com/milvus-io/pymilvus/pull/1683
* Update grpcio version range by XuanYang-cn in https://github.com/milvus-io/pymilvus/pull/1693
* Update 2.2.x readme by XuanYang-cn in https://github.com/milvus-io/pymilvus/pull/1700
Features
* Bulkinsert writer by yhmo in https://github.com/milvus-io/pymilvus/pull/1664
**Full Changelog**: https://github.com/milvus-io/pymilvus/compare/v2.2.15...v2.2.16