[R] Run all plotting examples #13825

Job	Run time
Build CPU	13m 57s
Build CUDA + manylinux_2_28_x86_64 wheel	10m 18s
Build CPU ARM64 + manylinux_2_28_aarch64 wheel	2m 57s
Build CUDA with RMM	10m 11s
Build CUDA with RMM (dev)	10m 21s
Build manylinux2014_aarch64 wheel	3m 0s
Build manylinux2014_x86_64 wheel	3m 17s
Build GPU-enabled R package	12m 24s
Run Google Tests with GPUs (Suite gpu, Runner linux-amd64-gpu)	4m 16s
Run Google Tests with GPUs (Suite gpu-rmm, Runner linux-amd64-gpu)	4m 20s
Run Python tests (single-gpu)	6m 58s
Run Google Tests with GPUs (Suite mgpu, Runner linux-amd64-mgpu)	2m 17s
Run Python tests (multiple-gpu)	8m 18s
Run Python tests (cpu-amd64)	17m 41s
Run Python tests (cpu-arm64)	1m 21s
	1h 51m 36s

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