[SDK] test: Add e2e test for tune function. #839

Job	Run time
e2e (v1.27.11, long-running-resume,from-volume-resume,median-stop)	19m 41s
e2e (v1.27.11, grid,bayesian-optimization,tpe,multivariate-tpe,cma-es,hyperband)	7m 28s
e2e (v1.27.11, file-metrics-collector,pytorchjob-mnist)	15m 37s
e2e (v1.27.11, median-stop-with-json-format,file-metrics-collector-with-json-format)	13m 24s
e2e (v1.28.7, long-running-resume,from-volume-resume,median-stop)	15m 51s
e2e (v1.28.7, grid,bayesian-optimization,tpe,multivariate-tpe,cma-es,hyperband)	24m 4s
e2e (v1.28.7, file-metrics-collector,pytorchjob-mnist)	13m 46s
e2e (v1.28.7, median-stop-with-json-format,file-metrics-collector-with-json-format)	16m 39s
e2e (v1.29.2, long-running-resume,from-volume-resume,median-stop)	14m 10s
e2e (v1.29.2, grid,bayesian-optimization,tpe,multivariate-tpe,cma-es,hyperband)	20m 7s
e2e (v1.29.2, file-metrics-collector,pytorchjob-mnist)	11m 52s
e2e (v1.29.2, median-stop-with-json-format,file-metrics-collector-with-json-format)	15m 29s
	3h 8m 8s

Provide feedback