Fix VolumeSizeInGB missing from v3 deploy for models with inference_v… #840

Job	Run time
collab-check	3s
wait-for-approval	3s
detect-changes	10s
codestyle-doc-tests (sagemaker-serve)	5m 44s
codestyle-doc-tests (sagemaker-mlops)	6m 44s
unit-tests (sagemaker-serve)	45m 35s
integ-tests (sagemaker-mlops)	54m 26s
integ-tests (sagemaker-serve)	41m 44s
unit-tests (sagemaker-mlops)	36m 28s
	3h 10m 57s

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