KEP-2170: Add manifests for Kubeflow Training V2 #1560

Job	Run time
integration-test (v1.29.2, none, 3.10)	16m 50s
integration-test (v1.27.11, none, 3.11)	16m 43s
integration-test (v1.28.7, none, 3.8)	16m 56s
integration-test (v1.29.2, scheduler-plugins, 3.9)	16m 40s
integration-test (v1.27.11, scheduler-plugins, 3.10)	16m 47s
integration-test (v1.28.7, scheduler-plugins, 3.11)	16m 33s
integration-test (v1.29.2, volcano, 3.8)	16m 27s
integration-test (v1.27.11, volcano, 3.9)	16m 2s
integration-test (v1.28.7, volcano, 3.10)	16m 4s
	2h 29m 2s

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