[tune/release] Demote xgboost_sweep to weekly testing (#21704)
[tune/release] Demote xgboost_sweep to weekly testing (#21704)

XGBoost functionality is tested daily in the xgboost release test suite. The expensive XGBoost sweep test can thus be run weekly.
ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray,ray-project/ray