[SDK] test: Add e2e test for tune function. #851

Job	Run time
e2e (v1.27.11, long-running-resume,from-volume-resume,median-stop)	16m 54s
e2e (v1.27.11, grid,bayesian-optimization,tpe,multivariate-tpe,cma-es,hyperband)	21m 0s
e2e (v1.27.11, file-metrics-collector,pytorchjob-mnist)	12m 1s
e2e (v1.27.11, median-stop-with-json-format,file-metrics-collector-with-json-format)	14m 22s
e2e (v1.28.7, long-running-resume,from-volume-resume,median-stop)	15m 49s
e2e (v1.28.7, grid,bayesian-optimization,tpe,multivariate-tpe,cma-es,hyperband)	20m 36s
e2e (v1.28.7, file-metrics-collector,pytorchjob-mnist)	12m 59s
e2e (v1.28.7, median-stop-with-json-format,file-metrics-collector-with-json-format)	12m 24s
e2e (v1.29.2, long-running-resume,from-volume-resume,median-stop)	14m 44s
e2e (v1.29.2, grid,bayesian-optimization,tpe,multivariate-tpe,cma-es,hyperband)	19m 51s
e2e (v1.29.2, file-metrics-collector,pytorchjob-mnist)	12m 29s
e2e (v1.29.2, median-stop-with-json-format,file-metrics-collector-with-json-format)	12m 39s
	3h 5m 48s

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