Push batch tree weights into predictors (#12068) #14806

Job	Run time
Configure variables for CI	8s
Build and test JVM packages (macos-15-intel)	8m 41s
Build libxgboost4j.so targeting glibc 2.17 (arch aarch64, runner linux-arm64-cpu)	2m 20s
Build libxgboost4j.dylib for MacOS (Intel)	1s
Build libxgboost4j.dylib for MacOS (Apple Silicon)	1m 11s
Build and test JVM packages (windows-latest)	9m 2s
Build libxgboost4j.so targeting glibc 2.17 (arch x86_64, runner linux-amd64-cpu)	2m 11s
Build and test JVM packages (Linux, Scala 2.12)	10m 45s
Build libxgboost4j.so with CUDA	8m 5s
Build and test JVM packages (Linux, Scala 2.13)	5m 29s
Test JVM packages with CUDA (Scala 2.12)	6m 57s
Test JVM packages with CUDA (Scala 2.13)	7m 0s
Deploy JVM packages to S3 (${{ matrix.variant.name }}, Scala ${{ matrix.scala_version }})	1s
	1h 1m 51s

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