[SDK] improve PVC creation name error #1238

Job	Run time
e2e (v1.29.2, long-running-resume,from-volume-resume,median-stop)	2m 34s
e2e (v1.29.2, grid,bayesian-optimization,tpe,multivariate-tpe,cma-es,hyperband)	2m 35s
e2e (v1.29.2, file-metrics-collector,pytorchjob-mnist)	2m 34s
e2e (v1.29.2, median-stop-with-json-format,file-metrics-collector-with-json-format)	2m 34s
e2e (v1.30.7, long-running-resume,from-volume-resume,median-stop)	2m 34s
e2e (v1.30.7, grid,bayesian-optimization,tpe,multivariate-tpe,cma-es,hyperband)	2m 35s
e2e (v1.30.7, file-metrics-collector,pytorchjob-mnist)	2m 33s
e2e (v1.30.7, median-stop-with-json-format,file-metrics-collector-with-json-format)	2m 34s
e2e (v1.31.3, long-running-resume,from-volume-resume,median-stop)	2m 34s
e2e (v1.31.3, grid,bayesian-optimization,tpe,multivariate-tpe,cma-es,hyperband)	2m 34s
e2e (v1.31.3, file-metrics-collector,pytorchjob-mnist)	2m 19s
e2e (v1.31.3, median-stop-with-json-format,file-metrics-collector-with-json-format)	2m 19s
	30m 19s

Provide feedback