fix: Remove hardcoded secret key from Triton ONNX export path #439

Job	Run time
collab-check	4s
wait-for-approval	3s
detect-changes	8s
codestyle-doc-tests (sagemaker-serve)	11m 22s
integ-tests (sagemaker-serve)	36m 26s
unit-tests (sagemaker-serve)	45m 26s
unit-tests (sagemaker-mlops)	33m 42s
integ-tests (sagemaker-mlops)	2m 39s
codestyle-doc-tests (sagemaker-mlops)	7m 12s
	2h 17m 2s

Provide feedback