[SDK] test: Add e2e test for tune function. #820

Job	Run time
e2e (v1.27.11, long-running-resume,from-volume-resume,median-stop)	26m 55s
e2e (v1.27.11, grid,bayesian-optimization,tpe,multivariate-tpe,cma-es,hyperband)	26m 57s
e2e (v1.27.11, file-metrics-collector,pytorchjob-mnist)	26m 54s
e2e (v1.27.11, median-stop-with-json-format,file-metrics-collector-with-json-format)	27m 2s
e2e (v1.28.7, long-running-resume,from-volume-resume,median-stop)	26m 53s
e2e (v1.28.7, grid,bayesian-optimization,tpe,multivariate-tpe,cma-es,hyperband)	26m 55s
e2e (v1.28.7, file-metrics-collector,pytorchjob-mnist)	26m 57s
e2e (v1.28.7, median-stop-with-json-format,file-metrics-collector-with-json-format)	26m 52s
e2e (v1.29.2, long-running-resume,from-volume-resume,median-stop)	26m 55s
e2e (v1.29.2, grid,bayesian-optimization,tpe,multivariate-tpe,cma-es,hyperband)	26m 54s
e2e (v1.29.2, file-metrics-collector,pytorchjob-mnist)	6m 45s
e2e (v1.29.2, median-stop-with-json-format,file-metrics-collector-with-json-format)	26m 55s
	5h 2m 54s

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