KEP-2170: Add unit and E2E tests for model and dataset initializers #1695

Job	Run time
integration-test (v1.29.2, none, 3.10)	5m 23s
integration-test (v1.27.11, none, 3.11)	5m 23s
integration-test (v1.28.7, none, 3.8)	5m 19s
integration-test (v1.29.2, scheduler-plugins, 3.9)	5m 19s
integration-test (v1.27.11, scheduler-plugins, 3.10)	5m 20s
integration-test (v1.28.7, scheduler-plugins, 3.11)	5m 20s
integration-test (v1.29.2, volcano, 3.8)	5m 19s
integration-test (v1.27.11, volcano, 3.9)	5m 22s
integration-test (v1.28.7, volcano, 3.10)	5m 23s
	48m 8s

Provide feedback