[CI] Build XGBoost wheels with CUDA 9.0 (#4459)
[CI] Build XGBoost wheels with CUDA 9.0 (#4459)

* [CI] Build XGBoost wheels with CUDA 9.0

* Do not call archiveArtifacts for 8.0 wheel

dmlc/xgboost,dmlc/xgboost,dmlc/xgboost,dmlc/xgboost,dmlc/xgboost,dmlc/xgboost