feat(docs): KEP-2599: Decouple runtime lifecycle from TrainJobs to simplify updating runtimes #3996

Job	Run time
Build and Publish Images (deepspeed-runtime, cmd/runtimes/deepspeed/Dockerfile, linux/amd64,linux...	39m 58s
Build and Publish Images (trainer-controller-manager, cmd/trainer-controller-manager/Dockerfile, ...	9m 24s
Build and Publish Images (mlx-runtime, cmd/runtimes/mlx/Dockerfile, linux/amd64)	23m 51s
Build and Publish Images (dataset-initializer, cmd/initializers/dataset/Dockerfile, linux/amd64,l...	1m 28s
Build and Publish Images (xgboost-runtime, cmd/runtimes/xgboost/Dockerfile, linux/amd64,linux/arm64)	10m 9s
Build and Publish Images (data-cache, cmd/data_cache/Dockerfile, linux/amd64,linux/arm64)	55m 58s
Build and Publish Images (torchtune-trainer, cmd/trainers/torchtune/Dockerfile, linux/amd64,linux...	5m 2s
Build and Publish Images (model-initializer, cmd/initializers/model/Dockerfile, linux/amd64,linux...	2m 43s
	2h 28m 33s

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