[jvm-packages] Supports external memory #14068

Job	Run time
Build CPU	11m 18s
Build CPU ARM64 + manylinux_2_28_aarch64 wheel	3m 11s
Build CUDA + manylinux_2_28_x86_64 wheel	8m 21s
Build CUDA with RMM	8m 47s
Build CUDA with RMM (dev)	8m 51s
Build GPU-enabled R package	10m 6s
Build manylinux2014_aarch64 wheel	2m 52s
Build manylinux2014_x86_64 wheel	2m 40s
Run Python tests (single-gpu)	7m 24s
Run Python tests (multiple-gpu)	15m 31s
Run Python tests (cpu-amd64)	18m 1s
Run Python tests (cpu-arm64)	1m 16s
Run Google Tests with GPUs (Suite gpu, Runner linux-amd64-gpu)	4m 19s
Run Google Tests with GPUs (Suite gpu-rmm, Runner linux-amd64-gpu)	4m 22s
Run Google Tests with GPUs (Suite mgpu, Runner linux-amd64-mgpu)	2m 31s
	1h 49m 30s

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