KEP-2170: Add manifests for Kubeflow Training V2 #1563

Job	Run time
integration-test (v1.29.2, none, 3.10)	28m 14s
integration-test (v1.27.11, none, 3.11)	17m 47s
integration-test (v1.28.7, none, 3.8)	27m 16s
integration-test (v1.29.2, scheduler-plugins, 3.9)	25m 45s
integration-test (v1.27.11, scheduler-plugins, 3.10)	23m 55s
integration-test (v1.28.7, scheduler-plugins, 3.11)	20m 16s
integration-test (v1.29.2, volcano, 3.8)	25m 36s
integration-test (v1.27.11, volcano, 3.9)	21m 36s
integration-test (v1.28.7, volcano, 3.10)	19m 59s
	3h 30m 24s

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