Merge branch 'branch-0.4.0' into 'branch-0.4.0'

MS-306 - Optimize build efficiency

See merge request megasearch/milvus!325

Former-commit-id: 73462ede77ba19fe979e28b553f628918670ee8a

cpp/cmake/ThirdPartyPackages.cmake

@@ -460,6 +460,7 @@ else()
     set(GRPC_SOURCE_URL
             "http://git.zilliz.tech/kun.yu/grpc/-/archive/master/grpc-master.tar.gz")
 endif()
+set(GRPC_MD5 "7ec59ad54c85a12dcbbfede09bf413a9")
 
 # ----------------------------------------------------------------------
 # ARROW