Go PS grpcio version too low

[skydoorkai]

Python codes (master/worker/elasticai_api) is using 1.34.0 version. Go is stilling using 1.29.0.

For grpc, it is ok for server version > client version, but not server version < client version.

Go tests are disabled in develop branch. v.0.2.0 branch is still using 1.29.0 for both Go and Python.