* [jvm-packages] unify setFeaturesCol API for XGBoostRegressor (#7784) * [jvm-packages] add doc for xgboost4j-spark-gpu (#7779) Co-authored-by: Jiaming Yuan <jm.yuan@outlook.com> * [jvm-packages] remove the dep of com.fasterxml.jackson (#7791) * [jvm-packages] xgboost4j-spark should work when featuresCols is specified (#7789) Co-authored-by: Bobby Wang <wbo4958@gmail.com>