Bump spark.version.gpu in /jvm-packages/xgboost4j-spark-gpu

Bumps `spark.version.gpu` from 3.3.2 to 3.4.1.

Updates `spark-core_2.12` from 3.3.2 to 3.4.1

Updates `spark-sql_2.12` from 3.3.2 to 3.4.1

Updates `spark-mllib_2.12` from 3.3.2 to 3.4.1

---
updated-dependencies:
- dependency-name: org.apache.spark:spark-core_2.12
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.apache.spark:spark-sql_2.12
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.apache.spark:spark-mllib_2.12
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

jvm-packages/pom.xml

@@ -36,7 +36,7 @@
         <flink.version>1.17.1</flink.version>
         <junit.version>4.13.2</junit.version>
         <spark.version>3.4.0</spark.version>
-        <spark.version.gpu>3.3.2</spark.version.gpu>
+        <spark.version.gpu>3.4.1</spark.version.gpu>
         <scala.version>2.12.18</scala.version>
         <scala.binary.version>2.12</scala.binary.version>
         <hadoop.version>3.3.5</hadoop.version>